On research of water hydraulics, the development of water hydraulic axial piston pump is extremely vital and is much difficult.
在水压技术的研究中，以轴向柱塞泵为代表的水压泵的开发是极其关键的，也具有较大难度。
The development of the reversable axial flow pump is presented in this paper together with its application to the heeling system of the ship.
本文阐述了可逆转轴流泵的开发研制情况及使用于逆转轴流泵的横倾平衡系统介绍。
According to the geologic characteristics and development status of the Yushulin Oil Field, the mechanism of casing damage is studied and the effect of axial tension on casing intensity is discussed.
根据榆树林油田地质特征和开发现状，研究了套管损坏机理，讨论了轴向拉应力对套管强度的影响。
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