rock drill bit

常見例句

雙語例句

• Abrasive particle in the circulation medium from hard rock and drill bit cut the element.
  循環(huán)介質中的磨料粒子（來自硬巖、鉆頭），對元件進行切割；
• 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";
  研究認為鉆柱振動是一受迫振動問題，需要將井底巖石-鉆頭-鉆柱-水龍頭作為一個“鉆柱振動系統(tǒng)”來對待；
  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.
  為了解決電鍍金剛石鉆頭鉆進堅硬致密巖石時效低的問題，進行了電鍍弱包鑲金剛石鉆頭的研究。

權威例句

• 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.
  FORBES: China Closer To Joining Shale Gas Fracking Craze
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