More severe cases may be treated with a CPAP machine, so named because they maintain constant positive air pressure to the wind pipe to help users breathe easy at night.

严重一点的患者可能就得用CPAP机来治疗了，人们给它取这个名字是因为它能够给气管提供稳定的空气压力，借以帮助患者在夜间呼吸。

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In the air compressor control systems, the air compressor vent pipe on the installation of pressure sensor to control the air compressor of pressure.

在空气压缩机控制系统中，采用空压机后端出气管道上安装的压力传感器来控制空气压缩机的压力。

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Air pressure forces the water through the pipe.

空气压力使水通过管道。

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As the liner is inserted into the pipe, it is turned inside out and forced through using water or air pressure.

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