Cách sử dụng
The word "pneumatic" refers to something that is powered or operated by air pressure. It can be used to describe tools or machines that use compressed air to function, such as a pneumatic drill or a pneumatic pump. It can also be used to describe systems that use air pressure to move things, such as a pneumatic tube system used to transport documents in an office. This word is often used in engineering and technology fields, but can also be found in everyday contexts.