只要将它连接到一个空气供应和活塞在跑来跑去。
Just connect it to an air supply and the piston goes back and forth.
利用湿空气的焓-湿图，分析了空气供应装置节能降耗的方法。
The methods of energy conservation in designing the air-supplying apparatus are figured out by analyzing the enthalpy-humidity chart.
在必须佩带呼吸装置的情况下，同样必须有一名监护人全职负责保持呼吸空气供应。
In circumstances where breathing apparatus must be worn there must also be an attendant wholly concerned with maintaining breathing air supplies.
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