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词汇 Positive displacement vacuum pump
分类 英语词汇 英语翻译词典
释义

Positive displacement vacuum pump

中文百科

真空泵 Vacuum pump

（重定向自Positive displacement vacuum pump）
油式真空帮浦。
Bomba de vacío de lóbulos, un tipo de bomba rotativa de vacío.
Principio de funcionamiento de una bomba de membrana.
The Roots blower is one example of a 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。

英语百科

Vacuum pump 真空泵

（重定向自Positive displacement vacuum pump）
The Roots blower is one example of a vacuum pump
Tesla's vacuum apparatus, published in 1892
The manual water pump draws water up from a well by creating a vacuum that water rushes in to fill. In a sense, it acts to evacuate the well, although the high leakage rate of dirt prevents a high quality vacuum from being maintained for any length of time.

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.
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