LYH100/200/265型矿井呼吸专用高压空气压缩机均配备空气净化装置，空气质量达到GB18435-2001《潜水呼吸气体》标准，并符合欧洲EN12021国际呼吸压缩空气标准。

LYH100/200/265 series air compressors are equipped with air-cleaner. The quality of air is to the standard of GB18435-2001and europe EN12021international compression air standard for breathing.

youdao

You've just done an adiabatic compression of the ideal gas, you can pretend there is an ideal gas.

这就是对理想气体的,绝热压缩，---我们把空气近似作为理想气体处理。

麻省理工公开课 - 热力学与动力学课程节选