The fracture of piston rod of new hydrogen compression pump is studied by metallography and electron probe in this paper.
用金相显微镜和电子探针对新氢压缩机活塞杆断口进行了分析。
The application of concentration system with multi - effect thermal compression pump could reduce the consumption of the steam and lower the production cost.
采用多效带压泵的浓缩系统，可大大减少加热蒸汽的消耗量，降低生产成本。
Straight line motor twin-tub compression pump of the present invention is compression pump with novel double-stator straight line motor and twin cylinder structure.
本发明所述的直线电机双缸压缩泵，是在压缩泵内设置了新型的 双定子直线电机和与之相配的双汽缸结构。
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