... perched water 上层滞水 percussion drilling 冲击钻探 percussion precast concrete pile 撞击式预制混凝土桩 ...
基于110个网页-相关网页
... percussion drill hammer 冲魂锤 percussion drilling 冲魂 percussion penetration method 撞会入法 ...
基于58个网页-相关网页
rotary percussion drilling 旋转冲唤钻进 ; 旋转冲击钻井
percussion drilling machine 冲唤钻机 ; 冲击式钻机
percussion drilling system 冲魂井方法
hydraulic percussion drilling 液压冲击钻井 ; 液动冲击回转钻井
carbide percussion drilling 硬质合金钻具的风动冲击钻进
The rotary percussion drilling technology have the advantage to raise the hard rock well drilling speed effectively, prevent the borehole deviation in the hard rock or the complicated geologic strata.
旋转冲击钻井技术依靠冲击器产生冲击载荷并作用在钻头上来破碎岩石。 该技术能够有效提高硬地层钻井速度,能够防止硬地层及复杂地层钻井中的井斜问题。
参考来源 - 减振冲击钻井系统设计研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Diamond drilling replaced percussion drilling.
金钻探取代了冲击钻探。
For a long time, they used percussion drilling - which basically means they hammered away at the ground to get as deep as they could get.
很长时间里他们用冲击钻井——基本上就是不停地砸地面，直到砸不动。
Hydraulic rotary-percussion drilling is one of five important drilling techniques recently. Itstechnique nucleus is hydro-percussive tools.
作为当今五大钻探技术之一的液动冲击回转钻探的技术核心是液动冲击器。
应用推荐