普及

System; a set of connected things forming a complex whole.

Charging; the process of replenishing an electric charge.

A device for making and breaking the connection in an electric circuit.

The basic physical and organizational structures and facilities (e.g., buildings, roads, power supplies) needed for the operation of a society or enterprise.

A moving image or video.

Mobile phone; cell phone.

To input; to enter data into a system.

machine, plane

The necessary items or facilities provided for a particular purpose.

Computer.