combined characteristics of turbo-drill-pump 涡轮
pump drill [机] 泵钻
drill pump liner 钻井泵缸
drill pump valve 钻井泵泵阀
drill pump valves 钻井泵泵阀
drill pump liners 钻井泵缸套
drill pump piston 钻井泵活塞
drill pump pistons 钻井泵活塞
Montana Drill Pump 蒙大纳州钻井泵
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。
Practice proves the testing accuracy of the displacement and motion Pattem of the drill pump valve me...
实践表明，泵阀位移及运动规律的测试精度能满足理论分析的要求。
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。
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