atmospheric pump
英 [ˌætməsˈferɪk pʌmp]
美 [ˌætməsˈferɪk pʌmp]
抽（空）气泵
双语例句
- In some cases the difference in atmospheric pressure causes the air to circulate naturally; in others a fan must be used to pump air into the mine. Waterproof and Shutoff for Closing of Pressured Dewatering Well Located in Foundation Pit
有些矿井利用大气压力差引起空气自然流动，有些矿井则必须用扇风机把空气压人井内。基坑内承压降水井封井的防水与封堵 - Rational design is made for the volume capacity, upper and bottom covers of vacuum permeating bucket outside the cocoon cooking machine, with a secondary water circulation vacuum pump connecting the atmospheric jet pump as the vaccum pump for the machine.
对煮茧机外真空渗透桶容积及上、下盖进行了合理设计，用二级水环真空泵串联大气喷射泵作该机真空泵，并分析了设计原理。