文章描述了某轮双螺杆货油泵的损坏状况，具体分析了产生故障的原因，提供了相应修理方案。

This paper describes the condition of the damaged cargo gear pump used in chemical tanker, gives a new repairing technique.

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在欧美和日本等发达国家，螺杆型干式真空泵在很多领域已经越来越多的代替了传统的有油泵。

In many developed countries, such as America, Japan, conventional oil vacuum pump has been replaced by dry screw vacuum pump in more and more fields.

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单螺杆抽油泵是一种新型的采油泵，结构简单，性能可靠，作业成本低。

The single screw oil pump is a new type extracting oil pump, which is simple in structure and high in performance with low working cost.

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