• When the pressure transients occur in low pressure pipelines such as the suction lines of pumps or the return lines of a hydraulic system, gas bubbles and cavitation will occur inside the fluid.

    压力脉动发生液压泵油管路液压系统油管路低压管路中时,会引起气泡和气产生破灭。

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  • This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.

    本文提出了全新的综放工作面通风系统顶层瓦斯煤柱底层回风顺槽布置,具体放顶煤工作面顶板排瓦斯巷位置改进

    youdao

  • This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.

    本文提出了全新的综放工作面通风系统顶层瓦斯煤柱底层回风顺槽布置,具体放顶煤工作面顶板排瓦斯巷位置改进

    youdao

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