所谓真空于燥，就是将干燥物料处在真空条件下，进行加热干燥，如果利用真空泵进行抽气抽湿，则加快了干燥速率。
It is well known that vacuum drying is to put raw material under the state of vacuum for heating and drying. If use vacuum to pump air and humidity out, the dry speed will be faster.
干式真空泵中最重要的部件就是阴、阳螺杆转子，转子型线及其热力学性能决定了泵的抽气性能。
The driving and driven screw rotors are the most important components. The rotor profile and thermodynamic performance determine the pumping performance of pump.
在适当的压强下，工艺室被接通高真空泵系统抽气，以继续降低工艺室的压强。
At the appropriate pressure, the chamber is opened to a high-vacuum pumping system that continues to reduce the pressure of the process chamber.
减压蒸馏使用带抽气口和防护滴管的接液管，可以防止液体直接泄露到真空泵中。
Vacuum distillation using the dropper with the exhaust port and the access protection tube to prevent leakage of liquid directly into the vacuum pump.
本文介绍了干式真空泵的抽气原理、定义和特点及其应用，最后简述了干式泵抽除颗粒物质的措施和方法。
In this paper, the pumping principle, definition, performance of dry vacuum pump and its applications are described.
对单级与双级抽气开平衡通道与不开平衡通道的真空泵的真空度进行了对比分析。
Comparison of vacuum is made between the single and double suction vacuum pump, between the unit with balance passage and that without balance passage.
本文介绍了干式真空泵的抽气原理、定义和特点及其应用，最后简述了干式泵抽除颗粒物质的措施和方法。
In this paper, the pumping principle, definition, performance of dry vacuum pump and its applications are described. Then briefly introduce the method to pump the particulate material with dry pump.
本文介绍了干式真空泵的抽气原理、定义和特点及其应用，最后简述了干式泵抽除颗粒物质的措施和方法。
In this paper, the pumping principle, definition, performance of dry vacuum pump and its applications are described. Then briefly introduce the method to pump the particulate material with dry pump.
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