抽气泵

VD精炼炉的真空抽气泵工作时蒸汽压力稳定而流量具有周期性，间断使用。

The pressure of the steam used in the vacuum pump of VD refining furnace is stable , but its flow is periodic .

主抽气泵，主排气泵控制泵和主动回油泵

Main scavenging pump control and primary scavenging pump

设计了一套硅片专用真空夹紧装置，包括夹紧装置和微型无油真空抽气泵。

A vacuum clamp equipment used for holding Si wafer is designed in this paper .

霓虹灯管真空抽气泵自动斯普伦格尔真空泵

Neon light tube vacuum pump

抽气泵的排气管应该导向室外空旷处或导向一座通风橱。

The pump exhaust should lead to the open air or a fume hood . Exhaust vaporous wastes through a pipe .

并结合β射线粉尘仪采样器控制要求，分别设计了抽气泵，电磁铁，步进电机的控制程序。

Allowing forthe β - ray Dust Monitor Sampling control requirements , designs are made for the airpump , solenoid , stepper motor control program .

热沉不但具备模拟宇宙的冷黑环境功能，而且它还相当于一个辐射换热器和抽气泵，由此引出热沉材料的选择原则。

Because the heat sink not only has the functions of simulating the " cold " and " dark " conditions of space , but also is a radiation-heat exchanger and a vacuum pump , the choice of heat sink materials is important .