pump drill [机] 泵钻
drill pump valve 钻井泵泵阀
drill pump valves 钻井泵泵阀
drill pump piston 钻井泵活塞
drill pump liners 钻井泵缸套
drill pump pistons 钻井泵活塞
Montana Drill Pump 蒙大纳州钻井泵
drill pump displacement 钻井泵的排量
seven-plunger drill pump 七缸钻井泵
The drill pump's optimum capacity is 7.43L/s, the equivalent diameter of nozzle used on micro hole bit is 6.4mm.
以获得最大钻头水功率为目标函数对微小井眼钻井进行了水力参数优化设计,优选出微小井眼钻井所用钻井泵的最优排量为7.43L/s,微小井眼钻头喷嘴当量直径为6.4mm。
参考来源 - 提高微小井眼钻头破岩效率的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The test stand prepares the ground for a through investigation into drill pump valves.
试制的实验室用泵阀试验台为深入开展钻井泵泵阀的理论研究创造了条件。
Test shows that the service life of the drill pump valve and liner after carburizing and vanadiumizing are greatly extended.
试验表明，钻井泵泵阀和缸套经增碳-钒化处理后其使用寿命显著延长。
The guide rule and general plan to design a laboratorial test stand for drill pump valves are expounded, and the regulation and calculation of the system pressure of the stand are discussed.
系统地阐述了钻井泵泵阀试验台的设计指导思想和设计方案的确定依据，并介绍了试验台系统压力的调节方法和计算公式。
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