膜式泵mó shì bèng
membrane pump; film pump; diaphragm pump
应急泵yīng jí bèng
emergency pump; jury pump; stand-by pump
原声例句
CNN 10 学生英语 2018年9月合集
A pressure pump with special nozzles makes the fine fog.
一个带有特质喷嘴的压力泵可以制造这种薄雾。
Crash Course 解剖生理学篇
The heart's entire purpose is to maintain that same kind of pressure gradient, by generating high hydrostatic pressure to pump blood out of the heart, while also creating low pressure to bring it back in.