low pressure recompression using air 使用空气的低压再加压
Blow moulding is a process used to make hollow plastic parts which involves heating the material and then forming it into a mould using air pressure.
吹制模制是一种用来制造中空塑料部件的工艺,将材料加热,然后用空气压力使它在模子中成型。
To prevent snoring, doctors suggest sleeping on your side (ladies, roll him over if you need to), using nasal strips or losing weight (less pressure on the airways means more space for air to flow).
医生建议,要防止打鼾,可以侧睡(女士们,如果需要,帮他翻个身),使用鼻带,或减肥(减少气道压力会给空气流入增加空间)。
Prior to the air pressure test, a trial test shall be carried out using air or other nontoxic and incombustible gas.
气体压力试验时,必须用空气或其他无毒、可燃气体介质进行预试验。
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