A2 noun Neutro #5,000 mais comum 1 min de leitura

毫米

haomi /ˈmɪlɪmiːtər/
Practice it

The millimeter is a fundamental metric unit for measuring small lengths precisely.

Palavra em 30 segundos

  • A standard metric unit of length.
  • Equal to one-thousandth of a meter.
  • Commonly used for precise small-scale measurements.

Overview

  1. 1概述：毫米（millimeter）是国际单位制中的长度单位，是米（meter）的千分之一。在日常生活中，它是测量物体长度、厚度或直径最常用的单位之一。2) 使用场景：毫米通常用于精密测量，比如测量纸张的厚度、电子零件的大小、或者建筑图纸中的细节尺寸。在中文表达中，毫米常与数字连用，例如“5毫米”。3) 常见语境：在学校教育中，学生通过直尺学习毫米，了解其与厘米（cm）的换算关系（1厘米=10毫米）。在工业制造和工程领域，毫米是标准的基础测量单位。4) 近义词辨析：毫米与微米（micrometer）相比，毫米更大；与厘米（centimeter）相比，厘米是毫米的10倍。在口语中，人们有时会直接说“毫米”，在非正式场合也可能用“公厘”来指代，但“毫米”是最标准的用法。

Exemplos

1

这只蚂蚁大约有5毫米长。

everyday

This ant is about 5 millimeters long.

2

工程图纸上的误差不得超过1毫米。

formal

The error on the engineering drawing must not exceed 1 millimeter.

3

把那个小零件剪掉2毫米。

informal

Cut 2 millimeters off that small part.

4

降雨量以毫米为单位进行测量。

academic

Rainfall is measured in millimeters.

Colocações comuns

几毫米 a few millimeters
精确到毫米 precise to the millimeter
毫米波 millimeter wave

Frases Comuns

毫米级

millimeter-level

差之毫厘

a tiny difference (idiom)

Frequentemente confundido com

毫米 vs 厘米

A centimeter is 10 millimeters. It is a larger unit often used for measuring body parts or small objects.

毫米 vs 微米

A micrometer is one-thousandth of a millimeter. It is used for microscopic scales.

Padrões gramaticais

数字 + 毫米 长度为 + 数字 + 毫米 以毫米为单位

How to Use It

Notas de uso

Millimeter is a standard unit used in both formal scientific contexts and casual daily conversation. It is universally understood in countries using the metric system. No special register is required to use this word.

Erros comuns

Learners often confuse 'millimeter' with 'milliliter' because of the 'milli-' prefix. Remember that 'meter' refers to length while 'liter' refers to volume. Always double-check the suffix to avoid confusion.

Tips

💡

Use a ruler for visualization

Look at a standard plastic ruler. The smallest tick marks usually represent one millimeter.

⚠️

Do not confuse with centimeters

Always check if the measurement requires cm or mm. Mixing them up can lead to a tenfold error.

🌍

Metric system dominance

The metric system is used globally in science and daily life. Understanding 'millimeter' is essential for international communication.

Origem da palavra

The word is derived from the French 'millimètre', combining 'milli-' (thousandth) and 'mètre' (measure). It was introduced during the French Revolution to create a standardized global measurement system.

Contexto cultural

The millimeter is the backbone of the metric system, which is the standard in almost every country except the US. It plays a crucial role in international trade and scientific collaboration.

Dica de memorização

Think of 'milli' as a 'millionth' of a kilometer or 'thousandth' of a meter. Imagine a tiny ant that is exactly one millimeter long.

Perguntas frequentes

4 perguntas

1厘米等于10毫米。这是长度单位换算中最基础的知识点。

在口语中，人们通常直接说“毫米”。有时为了简洁，在测量语境下也会直接说数字加单位，例如“三毫米”。

毫米比微米大。1毫米等于1000微米。

“毫”在中文里代表千分之一，所以“毫米”直译就是千分之一米。

Teste-se

fill blank

这张纸的厚度大约只有0.1___。

Correto! Quase. Resposta certa: 毫米

纸张非常薄，通常用毫米来衡量其厚度。

multiple choice

5厘米等于多少毫米？

Correto! Quase. Resposta certa: 50毫米

1厘米=10毫米，所以5厘米=50毫米。

sentence building

这颗螺丝的直径是8___。

Correto! Quase. Resposta certa: 毫米

螺丝是很小的零件，直径应使用毫米作为单位。

Pontuação: /3

Related Content

Explorar rede de palavras (3)

Vocabulário relacionado

长度

Length.

 厘米

Centimeter.

 单位

Unit (of measurement); work unit.

Mais palavras de general

一下儿

A1

a bit, a moment

点儿

A1

a little bit

有点儿

A1

a little, somewhat (negative connotation)

一下

A2

A bit; a moment (used after a verb).

异样

B1

different; unusual; strange

关于

A1

about, concerning

快要

A2

to be about to (happen)

大约

B1

Used to show that a number or amount is not exact; approximately.

上边

A2

above, on top

上面

A1

on, above, over

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