管路体系焊补后应当用紧缩空气吹净。
The piping system should be blown with the compressed air after being welded.
睡眠呼吸暂停因空气流往肺部的通道——气道——的不正常紧缩或堵塞引发，这会导致血液中的氧气含量骤然下降。
Sleep apnea is caused by the abnormal narrowing or blockage of the airways that allow air to flow into the lungs, which causes sudden drops in oxygen in the blood.
因为愈来愈多的空气堆积正在气箱内，空气分子遭到紧缩，。
As more and more air crowds into the chamber, the molecules of air become compressed.
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