真空泵 Vacuum pump
（重定向自Positive displacement vacuum pump）
真空泵是制造真空的一种机械，它可以把一个密闭的或半密闭的空间中空气排出或者吸收，达到局部空间的相对真空。常见的真空泵有往复式真空泵、水环泵、分子泵、旋片式真空泵、活塞式真空泵、摇摆活塞式真空泵、隔膜式真空泵、线性真空泵等种类非常多。
Positive displacement vacuum pump
中文百科
英语百科
Vacuum pump 真空泵
（重定向自Positive displacement vacuum pump）
A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity.
- linear filter model的意思
- linear finder的意思
- linear finite automaton的意思
- linear first order differential equation的意思
- linear firstorder differential equation的意思
- linear first order homogeneous的意思
- linear fitting的意思
- linear flame propagation的意思
- linear flexibility的意思
- linear float guide的意思
- linear flow的意思
- linearflowage structure的意思
- linear flow characteristic的意思
- linear flow rate的意思
- linear flow structure的意思
- linear flow structure, linear flowage structure的意思
- linear flow sturcture的意思
- linear fluid的意思
- linear fluid flow的意思
- linear focusing的意思
- linear fold的意思
- linear foliation的意思
- linear foot的意思
- Linear form的意思
- linear form model的意思