以下为句子列表：
英文: A piston pin fits into a round hole in the piston.
中文: 活塞销装在活塞的环形的孔里。
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英文: Abstract: Higher fatigue strength for the thermal and mechanical load were demanded by the heavy duty engine piston due to the critical requirement of the engine.
中文: 随着发动机强化程度的不断提高，要求活塞具有更好的抗机械疲劳性能和抗热疲劳性能。
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英文: Abstract: Making a comparison between bladder-type accumulator and piston accumulator,the paper presents the characteristics of both devices,puts forward and recommends to “piston accumalator with gas bomb”circuit design solution for large oil compensatin
中文: 文摘:对比说明了囊式和活塞式蓄能器的特点,对大型补油保压系统提出了推荐采用“带储气瓶的活塞式蓄能器”回路设计方案的观点,并阐述了利用活塞式蓄能器进行充气加压的操作过程和方法。
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英文: Abstract: The influence of the main factors on device efficiency of pulsedliquicd jet pump with gas-liquid piston is analysed, the theoretical equation and its time-averaged solution of pulsed liquid jet pump device efficiency are derived.
中文: 文摘:对影响气液活塞式脉冲液体射流泵装置效率的主要因素进行分析，导出了脉冲液体射流泵装置效率理论方程及其理论方程的时均解。
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英文: Abstract: “High pressure oil shock” has been found to be the major source of shock noises in the rotary piston vacuum pumps.Recently,we found that the oil shock may shift forward.Here,the high pressure oil-shock and the formation mechanism of three other
中文: 文摘:“高速油液冲击”是滑阀真空泵冲击噪声的主要激励源，通过试验发现了这一冲击的前移现象，并进一步分析了高速油液冲击和其他三种冲击的形式，为降低滑阀真空泵噪声提供了可靠的依据。
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