Modern artificial hearts are less cumbersome, but they are still rather unwieldy because they use compressed air to pump the blood and are powered by heavy batteries.
相比之下，现代的人造心脏装置虽没那么笨重，但可操作性仍然不强，因为人们须借助外接电池组提供动力用压缩空气将血液输送往全身各个部位。
In places such as India, ingenious, if slightly dangerous, devices exist whereby a fan is used to blow air through a mesh of straw which has water trickling through it powered by a small pump.
在印度之类的地方，那里有一种巧妙但或许稍有危险的设备，它利用风扇将空气吹过一个利用小型水泵而流淌着水的秸秆网来降温。
Introduce the high powered technical requirement, present production and use state as well as the manufacture of the air sampling pump.
介绍大气采样泵的高性能技术要求、生产和使用现状及高性能旋转式气泵的研制。
Pump will not overheat: powered by compressed air in the exhaust is an endothermic process of expansion, pneumatic pump when the temperature is lower, non-harmful gas emissions.
泵不会过热：压缩空气作动力，在排气时是一个膨胀吸热的过程，气动泵工作时温度是降低的，无有害气体排出。
The ChemGrout model CG-050 is a portable, skid mounted, air or hydraulic powered grout pump.
该模型灌浆泵安装快速便携，由空气或液压驱动。
Just only need contacts between the air-powered pump and 2" hole of standard barrel to fulfill the functions."
所有功能实现，只需要气力泵与标准桶的一个2“联结?。
Just only need contacts between the air-powered pump and 2" hole of standard barrel to fulfill the functions."
所有功能实现，只需要气力泵与标准桶的一个2“联结?。
应用推荐