金刚钻

[jīn gāng zuàn]

• diamantine
• bort(z)
• diamond

参考释义

金刚钻 [jīn gāng zuàn]

• -
• 短语
  金刚钻钻头 diamond bit

例句

1. 在钻机的金刚钻头旋转的时候，泥浆便进行了润滑。
   As the diamond tip of the drill revolves, it is lubricated by mud.