... pumped storage power station 抽水蓄能电站 pumping element 泵件 pumping frequency 抽运频率 ...
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泵体是由铸铁铸造毛坯成型，出现严重磨损时应更换新件。
Pump body is by cast iron casting blank forming, severe wear new thing should be changed.
设有泵体密封环，而叶轮密封环为可选用件。
Sealing ring is fitted on pump body, while impeller sealing ring is an optional part.
泵阀是钻井工作过程的直接组成件，也是钻井泵中最重要的易损件之一。
Drilling pump valve is one of the most important wearing parts of drilling pump.
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