rock drill bit
常见例句
- Abrasive particle in the circulation medium from hard rock and drill bit cut the element.
循环介质中的磨料粒子(来自硬岩、钻头),对元件进行切割; - Our research demonstrate that the drill string vibration is forced vibration, it needs to consider the rock-drill bit-drill string-swivel as the "drill string vibration system";
研究认为钻柱振动是一受迫振动问题,需要将井底岩石-钻头-钻柱-水龙头作为一个“钻柱振动系统”来对待;
www.cea.gov.cn - In order to solve the problem of low efficiency drilling in hard and compact rock with diamond drill bit, efforts were made to manufacture electroplated weakly-bonded diamond bit.
为了解决电镀金刚石钻头钻进坚硬致密岩石时效低的问题,进行了电镀弱包镶金刚石钻头的研究。 - But for shale gas, once the drill reaches the shale rock underground, the drill bit is turned horizontally to bore a well that stretches through the natural gas producing shale.
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