常見例句用作名詞 (n.)Vacuum packaging is produced by pumping all the air out of the package.真空的包裝都是用抽氣機(jī)把空氣抽出的。In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump.為了獲得這種性能的提升，渦輪增壓機(jī)使用發(fā)動機(jī)排除的廢氣帶動渦輪旋轉(zhuǎn)，渦輪是一種旋轉(zhuǎn)式的空氣泵。 返回 air-pump