This paper is to describe a study of a mechanical vacuum pump using sealed bellows.

本文介绍了波纹管密封真空泵的研究。

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Mechanical vacuum pump is an important part of vacuum system. The vibration of pump must be controlled strictly, because it indicates the level of pump design and manufacture.

机械真空泵是组成真空系统的必不可少的部分，它的振动必须严格控制，因为泵的振动不仅反映泵的设计、制造水平。

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Vacuum pump is a relatively sophisticated equipment, it's working medium is a special high boiling point, low-volatile oil pump, its effectiveness depends on the mechanical pump and pump oil quality.

真空油泵是一种比较精密的设备，它的工作介质是特制的高沸点、低挥发的泵油，它的效能取决于油泵的机械结构和泵油的质量。

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