... two-pin sure-seal connector；双销全密封连接器 two-piston pump；双柱塞泵 two-position actuator；双位致动器 ...
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The content of paper includes two parts: the noise analysis of hydraulic axial piston pump and improved design of structure.
设计主要有两个部分的内容：液压轴向柱塞泵的噪声分析和结构的改进。
The paper introduces the development of the precise metering pump with two \ | way piston for sampling flue gases, its characteristic and applications.
文章介绍了双向活塞式精密气体采样计量泵的研制及其特性和应用。
The working principle of a new kind of double-acting hand piston pump having two-step output pressure was introduced. The displacement and the output pressure calculating formulae were given.
介绍了一种新型手动双作用双级柱塞泵的工作原理，给出了其排量与输出压力的计算公式。
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