B2 noun #12,000 پرکاربردترین 13 دقیقه مطالعه
Biotechnology is a big word, but it has a simple meaning. 'Bio' means life, like plants and animals. 'Technology' means using tools or science to make things. So, biotechnology is using living things like tools to help people. For example, using tiny living things called yeast to make bread grow is a kind of biotechnology. It is a way scientists use nature to make our lives better, like making medicine for when we are sick or helping farmers grow more food. It is about how we use the power of living things to solve problems.
Biotechnology is the science of using living organisms to make products. It is a mix of biology and technology. We use biotechnology in many places. In medicine, it helps us make new vaccines and medicines. In farming, it helps us grow plants that don't get sick easily. Even in our homes, we use biotechnology when we use enzymes in laundry detergent to clean our clothes. It is a very important field because it helps us find new ways to stay healthy and protect the environment. Scientists in this field work in labs to study how cells and bacteria can be used to help us.
Biotechnology refers to the use of biological systems or living organisms to develop or create different products. It's not just a modern science; humans have used it for centuries in processes like fermentation for making cheese and bread. However, modern biotechnology is much more advanced. It involves working with DNA and cells to solve complex problems. For example, it's used to develop better treatments for diseases like cancer and to create crops that can survive with less water. It's a key part of the modern economy and a very popular field of study for students interested in science and innovation.
Biotechnology is the application of biological knowledge and techniques to develop products and technologies that improve human life and the health of the planet. It is a broad field that encompasses several disciplines, including genetics, biochemistry, and molecular biology. In agriculture, biotechnology is used to create genetically modified organisms (GMOs) that are resistant to pests. In medicine, it is essential for the production of insulin and other life-saving drugs. The word is often used in the context of innovation and ethics, as society must decide how to use these powerful biological tools responsibly. It is a central term in discussions about the future of medicine and environmental sustainability.
Biotechnology represents the intersection of biological sciences and technological innovation, focusing on the manipulation of living organisms or their components to produce useful goods and services. This field is categorized into various sectors, often referred to by colors: 'red' for medical applications, 'green' for agriculture, and 'white' for industrial processes. At this level, the term implies a sophisticated understanding of molecular biology and genetic engineering. It is frequently discussed in terms of its ethical, legal, and social implications (ELSI), particularly concerning gene editing and biodiversity. Professionals in this field work on high-stakes projects like developing synthetic fuels or engineering microbes for environmental remediation.
Biotechnology is the multi-disciplinary field that leverages cellular and biomolecular processes to develop technologies and products that assist in resolving anthropogenic challenges and advancing human capabilities. It encompasses a vast spectrum of activities, from the historical use of microbial fermentation to the contemporary frontiers of synthetic biology and CRISPR-mediated genome editing. In C2 contexts, the term is used with an awareness of the complex regulatory frameworks, intellectual property debates, and bioethical considerations that govern the industry. It is seen as a primary driver of the 'bioeconomy,' influencing global health policy, agricultural security, and the transition toward sustainable industrial manufacturing. Mastery of this term involves understanding its role in systemic global changes.

Biotechnology is an expansive and revolutionary field of science that sits at the intersection of biology and technology. At its most fundamental level, biotechnology involves the utilization of biological systems, living organisms, or derivatives thereof, to create or modify products and processes for specific uses. This could range from the ancient practice of using yeast to ferment bread or brew beer to the cutting-edge manipulation of genetic material using CRISPR-Cas9 technology. In the modern context, when people speak of biotechnology, they are often referring to the high-tech manipulation of DNA and cellular structures to solve some of the world's most pressing challenges. It is a term that encompasses a vast array of disciplines including genetics, molecular biology, biochemistry, and cell biology. The primary objective of biotechnology is to harness the power of nature to improve the quality of human life and the health of our planet. This includes developing life-saving medicines, increasing agricultural yields to combat global hunger, and creating sustainable energy sources like biofuels to reduce our carbon footprint. The word is frequently used in business, medicine, and environmental policy discussions.

Red Biotechnology
This branch focuses on medical processes, such as the production of antibiotics and the development of genetic cures through genomic manipulation. It is the most well-known application of the field.
Green Biotechnology
Applied to agricultural processes, this involves creating genetically modified plants to increase crop yields, improve nutritional content, or provide resistance to pests and environmental stressors like drought.
White Biotechnology
Also known as industrial biotechnology, this uses organisms like molds, bacteria, or enzymes to produce chemicals, plastics, and fuels in a more sustainable and environmentally friendly manner than traditional chemical synthesis.

The startup is focusing on biotechnology to create lab-grown meat that tastes exactly like the real thing.

Many vaccines we use today are products of advanced biotechnology research.

Farmers are increasingly turning to biotechnology to protect their crops from invasive insects without using harmful sprays.

The university recently opened a new center for biotechnology to encourage interdisciplinary research.

Investors are pouring billions into biotechnology firms that promise to cure rare genetic disorders.

Furthermore, biotechnology plays a critical role in environmental conservation through bioremediation. This process uses microorganisms to clean up contaminated environments, such as oil spills in the ocean or toxic waste in soil. By engineering bacteria that can 'eat' pollutants, biotechnology provides a natural solution to man-made environmental disasters. As we look to the future, the ethical implications of biotechnology, such as gene editing in humans or the environmental impact of genetically modified organisms (GMOs), continue to be subjects of intense global debate. Understanding biotechnology is essential for anyone interested in science, ethics, or the future of human civilization, as it remains one of the fastest-growing and most impactful sectors of the global economy.

Using the word 'biotechnology' correctly requires an understanding of its grammatical role as an uncountable noun. It typically refers to the field or the industry as a whole. You will often see it functioning as the subject of a sentence describing scientific progress or as an object following verbs like 'study,' 'advance,' 'regulate,' or 'invest in.' Because it is a broad term, it is frequently paired with adjectives that specify a particular branch or application, such as 'marine biotechnology,' 'agricultural biotechnology,' or 'medical biotechnology.' It is also very common to use it as a modifier for other nouns, creating compound terms like 'biotechnology company,' 'biotechnology research,' or 'biotechnology industry.' When discussing the practical application, you might say 'The application of biotechnology in agriculture has revolutionized farming.' It is important not to use the plural form 'biotechnologies' unless you are specifically referring to a distinct set of different technological methods within the field, though even then, the singular is much more common in standard English.

As a Subject
Biotechnology offers promising solutions to the global food crisis by developing crops that can thrive in harsh climates.
As an Object
Governments around the world are struggling to regulate biotechnology as it moves faster than the laws can keep up.
As a Modifier
The biotechnology sector has seen a massive increase in venture capital funding over the last decade.

Recent breakthroughs in biotechnology have made it possible to edit genes with incredible precision.

She decided to pursue a degree in biotechnology because she wanted to work on cancer research.

The ethics of biotechnology are often discussed in philosophy and law classes.

Without biotechnology, we would not have the insulin required to treat diabetes effectively.

The conference focused on how biotechnology can help mitigate the effects of climate change.

In professional writing, you might encounter 'biotechnology' in the context of intellectual property and patents. For instance, 'The biotechnology patent was granted after years of legal battles over the original discovery.' In a more casual but still educational setting, it appears in discussions about food: 'Is the biotechnology used in GMOs safe for human consumption?' Notice how the word remains singular in all these contexts. By mastering its use, you can discuss complex scientific and societal topics with greater clarity and precision. Whether you are writing a lab report, a business proposal, or a news article, 'biotechnology' serves as a vital term to describe the modern marriage of life and technology.

The word 'biotechnology' is ubiquitous in the 21st century, appearing in a diverse range of environments from academic lecture halls to the financial pages of major newspapers. If you are a student, you will hear it frequently in science classes, especially during units on genetics, evolution, and medicine. Professors use it to describe the tools they use in research, such as gene splicing or protein engineering. In the professional world, particularly in the healthcare and pharmaceutical industries, 'biotechnology' is the buzzword that defines the next generation of treatments. You will hear doctors and researchers discussing 'biotechnology-derived drugs' or 'biotechnology-based therapies.' Beyond the lab, the word is a staple of financial news. Stock market analysts often talk about the 'biotech sector' (using the shortened form) and how it is performing compared to traditional pharmaceutical companies. If you watch documentaries about the environment or the future of food, you will likely hear experts debating the merits and risks of 'agricultural biotechnology.' It is also a common topic in political and ethical debates, where lawmakers discuss the 'biotechnology regulations' needed to ensure public safety. You might even encounter it in a casual conversation at a grocery store if someone is discussing the labels on 'bioengineered' food products. In essence, anywhere that science meets society, 'biotechnology' is part of the conversation.

In the News
Reporters often use the term when announcing new medical breakthroughs or discussing the economic impact of scientific research on the global market.
In Academic Settings
Students and researchers use it to categorize their field of study and to describe the methodologies they apply in their experiments.
In Corporate Environments
Companies use the word in their mission statements and annual reports to signal their commitment to innovation and advanced scientific development.

Breaking News: A leading biotechnology firm has just announced a major breakthrough in Alzheimer's treatment.

Today’s lecture will cover the history of biotechnology, from ancient fermentation to modern CRISPR.

The investment advisor suggested diversifying the portfolio by adding some biotechnology stocks.

The documentary explores the controversy surrounding biotechnology and its role in our food supply.

We are looking for candidates with a strong background in biotechnology and data analysis.

Moreover, as biotechnology becomes more integrated into our daily lives, you will see it mentioned in legal contexts regarding ethics and patents. For instance, 'The court ruled on the patentability of biotechnology-derived organisms.' In social media discussions, people often use the term when debating the safety of new medical treatments or the ethics of genetic modification. Because it is such a broad term, its presence in our daily discourse is a testament to its profound influence on modern life. Whether you are hearing it from a scientist, a business leader, or a concerned citizen, 'biotechnology' represents the ongoing effort to use the building blocks of life to build a better future.

While 'biotechnology' is a common term, it is frequently misused or misunderstood. One of the most prevalent mistakes is confusing it with 'biology.' While biology is the general study of life and living organisms, biotechnology is specifically the application of that knowledge to create technology or products. Another common error is using 'biotechnology' as a synonym for 'genetic engineering.' While genetic engineering is a major part of biotechnology, the field also includes many other techniques that do not involve direct genetic manipulation, such as fermentation or enzyme immobilization. Many learners also struggle with the countability of the word; they might try to say 'many biotechnologies,' which sounds unnatural in most contexts. Instead, you should use 'biotechnology' as an uncountable noun or refer to 'biotechnology techniques' or 'biotechnology applications.' Additionally, people sometimes confuse 'biotechnology' with 'bioengineering.' While they overlap, bioengineering often focuses more on the physical and mechanical aspects of biological systems, whereas biotechnology is more focused on the cellular and molecular levels. Finally, there is often a misconception that biotechnology is only a modern invention. In reality, humans have been using biotechnology for thousands of years through processes like selective breeding and fermentation. Understanding these nuances will help you use the word more accurately and effectively.

Confusing with Biology
Incorrect: 'I am studying biotechnology to learn how plants grow.' Correct: 'I am studying biology to learn how plants grow, but I might use biotechnology to make them grow faster.'
Pluralization Errors
Incorrect: 'There are many biotechnologies available today.' Correct: 'There are many biotechnology applications available today.'
Over-narrowing the Definition
Incorrect: 'Biotechnology is just about changing DNA.' Correct: 'Biotechnology includes changing DNA, but it also includes using yeast to make bread or bacteria to clean oil spills.'

Mistake: Using biotechnology when you just mean 'science' or 'biology' in general.

Mistake: Spelling it as 'biotechnolgy' (forgetting the 'o' before 'gy').

Mistake: Assuming biotechnology is always unnatural or harmful.

Mistake: Saying 'a biotechnology' instead of 'a biotechnology company' or 'a biotechnology method.'

Mistake: Forgetting that biotechnology is a single word (not 'bio technology').

Another common error is failing to distinguish between the different 'colors' of biotechnology in specialized discussions. For instance, calling an industrial enzyme application 'green biotechnology' when it should be 'white biotechnology' can lead to confusion in a technical setting. Furthermore, many people use the term 'biotech' and 'biotechnology' interchangeably without realizing that 'biotech' is often used specifically to refer to the industry and its commercial interests, while 'biotechnology' is the broader scientific term. By being mindful of these common pitfalls, you will be able to communicate your ideas about this complex and vital field with much greater accuracy and professional authority.

When discussing the intersection of life and technology, several words are closely related to 'biotechnology' but have distinct meanings. Understanding these differences is key to precise communication. 'Bioengineering,' for example, is often used as a synonym, but it typically emphasizes the application of engineering principles and design concepts to biology and medicine. 'Genetic engineering' is a subset of biotechnology that specifically focuses on the direct manipulation of an organism's genes. 'Molecular biology' is a fundamental science that studies the molecular basis of biological activity, providing the knowledge that biotechnology then applies. 'Life sciences' is a much broader umbrella term that includes biology, biotechnology, medicine, and any other field that studies living organisms. 'Bionics' is another related term, but it focuses on the replacement or enhancement of biological organs with mechanical versions. 'Synthetic biology' is a newer, more specific field within biotechnology that involves redesigning organisms for useful purposes by engineering them to have new abilities. Choosing the right word depends on whether you want to emphasize the scientific study, the engineering process, or the broad industry sector.

Biotechnology vs. Bioengineering
Biotechnology is more focused on using cellular and molecular processes, while bioengineering often involves creating physical devices or structures like artificial limbs or medical imaging equipment.
Biotechnology vs. Genetic Engineering
Genetic engineering is the 'tool' used to change DNA, whereas biotechnology is the 'whole field' which includes genetic engineering along with other methods like using natural bacteria.
Biotechnology vs. Molecular Biology
Molecular biology is the study of how molecules like DNA work. Biotechnology takes that knowledge and uses it to make products like medicines or better crops.

While biotechnology creates the vaccine, bioengineering might design the delivery system for it.

The term 'life sciences' is often used by investors who want to include biotechnology and pharmaceuticals in one category.

Synthetic biology is a specialized area of biotechnology that builds new biological parts from scratch.

Don't just say 'science' when you specifically mean the application of living systems: use biotechnology.

Genetic engineering is the most controversial part of the broader biotechnology field.

In summary, while there are many alternatives, 'biotechnology' remains the most comprehensive term for the field. If you are discussing the broad impact of science on society, 'biotechnology' is usually the best choice. If you are talking about the specific act of changing DNA, 'genetic engineering' is more precise. If you are referring to the industry and stocks, 'biotech' is the standard. By understanding these nuances, you can navigate scientific and professional discussions with confidence and clarity, ensuring that your audience understands exactly which aspect of this vast field you are referring to.

مثال‌ها بر اساس سطح

1

Biotechnology helps us make good medicine.

La biotechnologie nous aide à fabriquer de bons médicaments.

Used as a subject.

2

Is biotechnology about plants?

La biotechnologie concerne-t-elle les plantes ?

Question form.

3

We use biotechnology every day.

Nous utilisons la biotechnologie tous les jours.

Present simple.

4

Biotechnology is a very big word.

La biotechnologie est un mot très long.

Simple definition.

5

I want to learn about biotechnology.

Je veux apprendre la biotechnologie.

Infinitive phrase.

6

Biotechnology makes food better.

La biotechnologie améliore la nourriture.

Subject-Verb-Object.

7

Scientists use biotechnology in labs.

Les scientifiques utilisent la biotechnologie dans les laboratoires.

Prepositional phrase 'in labs'.

8

Biotechnology is cool science.

La biotechnologie est une science cool.

Adjective 'cool' modifying 'science'.

1

Biotechnology is a mix of biology and technology.

La biotechnologie est un mélange de biologie et de technologie.

Compound definition.

2

They use biotechnology to grow more rice.

Ils utilisent la biotechnologie pour cultiver plus de riz.

Purpose clause with 'to grow'.

3

Many companies work in biotechnology.

De nombreuses entreprises travaillent dans la biotechnologie.

Plural subject 'Many companies'.

4

Does biotechnology help the environment?

La biotechnologie aide-t-elle l'environnement ?

Interrogative with 'does'.

5

Biotechnology can fix some diseases.

La biotechnologie peut guérir certaines maladies.

Modal verb 'can'.

6

He studied biotechnology at university.

Il a étudié la biotechnologie à l'université.

Past simple.

7

Biotechnology is important for our future.

La biotechnologie est importante pour notre avenir.

Adjective phrase 'important for'.

8

I read a book about biotechnology.

J'ai lu un livre sur la biotechnologie.

Prepositional phrase 'about biotechnology'.

1

Biotechnology has revolutionized the way we produce insulin.

La biotechnologie a révolutionné la façon dont nous produisons l'insuline.

Present perfect tense.

2

The biotechnology industry is growing very quickly.

L'industrie de la biotechnologie se développe très rapidement.

Noun as a modifier (biotechnology industry).

3

Farmers use biotechnology to create pest-resistant crops.

Les agriculteurs utilisent la biotechnologie pour créer des cultures résistantes aux parasites.

Compound adjective 'pest-resistant'.

4

We need to discuss the ethics of biotechnology.

Nous devons discuter de l'éthique de la biotechnologie.

Abstract noun 'ethics'.

5

Biotechnology is used to clean up oil spills in the ocean.

La biotechnologie est utilisée pour nettoyer les marées noires dans l'océan.

Passive voice 'is used'.

6

She is looking for a job in a biotechnology lab.

Elle cherche un emploi dans un laboratoire de biotechnologie.

Present continuous.

7

Advances in biotechnology have led to new cancer treatments.

Les progrès de la biotechnologie ont conduit à de nouveaux traitements contre le cancer.

Plural subject 'Advances'.

8

Biotechnology can be very expensive to research.

La recherche en biotechnologie peut être très coûteuse.

Infinitive as a complement.

1

Modern biotechnology relies heavily on genetic engineering techniques.

La biotechnologie moderne s'appuie fortement sur les techniques de génie génétique.

Adverb 'heavily' modifying 'relies'.

2

The application of biotechnology in agriculture is a controversial topic.

L'application de la biotechnologie en agriculture est un sujet controversé.

Noun phrase as the subject.

3

Biotechnology companies are investing in sustainable biofuels.

Les entreprises de biotechnologie investissent dans les biocarburants durables.

Present continuous tense.

4

Many life-saving vaccines are developed using biotechnology.

De nombreux vaccins salvateurs sont développés grâce à la biotechnologie.

Passive voice with a present participle.

5

The government has introduced new regulations for biotechnology research.

Le gouvernement a introduit de nouvelles réglementations pour la recherche en biotechnologie.

Present perfect with 'has introduced'.

6

Biotechnology offers a way to produce plastic without using oil.

La biotechnologie offre un moyen de produire du plastique sans utiliser de pétrole.

Gerund 'using' after a preposition.

7

Biotechnology is a key driver of innovation in the healthcare sector.

La biotechnologie est un moteur clé de l'innovation dans le secteur de la santé.

Noun phrase 'key driver of innovation'.

8

Students who study biotechnology often go into research or manufacturing.

Les étudiants qui étudient la biotechnologie se dirigent souvent vers la recherche ou la fabrication.

Relative clause 'who study biotechnology'.

1

The ethical dilemmas posed by biotechnology require careful public debate.

Les dilemmes éthiques posés par la biotechnologie nécessitent un débat public approfondi.

Past participle 'posed' acting as an adjective.

2

Biotechnology has enabled the synthesis of complex proteins that were previously unattainable.

La biotechnologie a permis la synthèse de protéines complexes qui étaient auparavant inaccessibles.

Relative clause with 'that were previously unattainable'.

3

The biotechnology sector is characterized by high risk and high reward for investors.

Le secteur de la biotechnologie se caractérise par un risque élevé et une récompense élevée pour les investisseurs.

Passive voice 'is characterized by'.

4

Marine biotechnology explores the potential of oceanic organisms for medical use.

La biotechnologie marine explore le potentiel des organismes océaniques à des fins médicales.

Specific branch 'Marine biotechnology'.

5

The rapid advancement of biotechnology has outpaced the development of legal frameworks.

Les progrès rapides de la biotechnologie ont dépassé le développement des cadres juridiques.

Present perfect 'has outpaced'.

6

Industrial biotechnology uses enzymes to streamline manufacturing processes and reduce waste.

La biotechnologie industrielle utilise des enzymes pour rationaliser les processus de fabrication et réduire les déchets.

Parallel infinitives 'to streamline' and 'reduce'.

7

Biotechnology plays a pivotal role in the global transition toward a circular economy.

La biotechnologie joue un rôle pivot dans la transition mondiale vers une économie circulaire.

Adjective 'pivotal' modifying 'role'.

8

Biotechnology research is often funded through a combination of public grants and private equity.

La recherche en biotechnologie est souvent financée par une combinaison de subventions publiques et de capitaux privés.

Compound prepositional phrase 'through a combination of'.

1

The confluence of biotechnology and artificial intelligence is poised to redefine personalized medicine.

La confluence de la biotechnologie et de l'intelligence artificielle est sur le point de redéfinir la médecine personnalisée.

Subject 'The confluence' with a singular verb 'is'.

2

Critics argue that the commercialization of biotechnology may lead to the commodification of life itself.

Les critiques soutiennent que la commercialisation de la biotechnologie pourrait conduire à la marchandisation de la vie elle-même.

Noun clause 'that the commercialization...'

3

Biotechnology serves as the cornerstone for contemporary biodefense strategies against emerging pathogens.

La biotechnologie sert de pierre angulaire aux stratégies contemporaines de biodéfense contre les agents pathogènes émergents.

Metaphorical use of 'cornerstone'.

4

The regulatory landscape for biotechnology remains fragmented across different international jurisdictions.

Le paysage réglementaire de la biotechnologie reste fragmenté selon les différentes juridictions internationales.

Subject-complement structure.

5

Advancements in biotechnology have necessitated a profound re-evaluation of bioethical principles.

Les progrès de la biotechnologie ont nécessité une profonde réévaluation des principes bioéthiques.

Transitive verb 'necessitated'.

6

Synthetic biotechnology allows for the de novo design of organisms with entirely novel metabolic pathways.

La biotechnologie synthétique permet la conception de novo d'organismes dotés de voies métaboliques entièrement nouvelles.

Latin phrase 'de novo' used as an adverbial modifier.

7

The biotechnology-led green revolution aims to mitigate the environmental impact of intensive agriculture.

La révolution verte menée par la biotechnologie vise à atténuer l'impact environnemental de l'agriculture intensive.

Compound modifier 'biotechnology-led'.

8

A robust biotechnology infrastructure is essential for a nation's long-term economic resilience.

Une infrastructure biotechnologique robuste est essentielle à la résilience économique à long terme d'une nation.

Adjective 'robust' modifying 'infrastructure'.

مترادف‌ها

bioengineering genetic engineering life sciences biological technology biotech

متضادها

traditional farming conventional manufacturing natural selection

محتوای مرتبط

واژه‌های بیشتر Science

abbioly

C1

واژه abbioly یک اصطلاح تخصصی برای تشخیص شهودی الگوهای حیات‌گونه در سیستم‌های بی‌جان است. این کلمه اغلب در آزمون‌های زبانی برای سنجش دایره لغات استفاده می‌شود.

abcapal

C1

ابکاپال یک غشای محافظ یا درزگیر تخصصی است که در آزمایشگاه ها برای جداسازی نمونه های حساس از آلودگی جوی و اکسیداسیون استفاده می شود.

abheredcy

C1

انحراف تدریجی از یک استاندارد یا مسیر در حالی که سعی در حفظ اتصال به آن دارید.

abhydrible

C1

این پوشش abhydrible از جذب رطوبت توسط قطعات جلوگیری می‌کند.

ablabive

C1

مربوط به حذف یا تخریب مواد، به ویژه از طریق ذوب، تبخیر یا برش جراحی.

abphobency

C1

خاصیت دفع‌کنندگی (abphobency) به ویژگی سطحی گفته می‌شود که موادی مانند آب یا روغن را دفع می‌کند.

abphotoion

C1

یون‌زدایی نوری: حذف یا جابجایی یون از ساختار مولکولی با استفاده از انرژی نور متمرکز یا تابش. این یک اصطلاح علمی تخصصی برای توصیف جداسازی دقیق ذرات از طریق برهم‌کنش فوتون است. محققان از لیزر برای یون‌زدایی نوری یون‌های مولکولی خاص جهت تجزیه و تحلیل استفاده می‌کنند.

abpulssion

C1

رانش (abpulssion) دریچه ایمنی به دلیل فشار بیش از حد رخ داد.

absorption

B2

جذب فرآیندی است که در آن یک ماده ماده دیگری را جذب می کند، مانند اسفنجی که آب را جذب می کند، یا حالتی از تمرکز کامل بر روی یک فعالیت. (جذب فرآیندی است که در آن یک ماده ماده دیگری را جذب می کند، مانند اسفنجی که آب را جذب می کند، یا حالتی از تمرکز کامل بر روی یک فعالیت.)

abvincfy

C1

جداسازی سیستماتیک یک مؤلفه یا متغیر خاص از یک سیستم پیچیده بزرگتر به منظور مطالعه مستقل آن.

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