1.  drill
2.  drill hole
3.  perforate
4.  borehole
5.  solid boring
6.  punching

• 1. 钻孔: drill | borehole | bore
• 2. 钻孔机: auger | boring machine
• 3. 科拉超深钻孔: Kola Superdeep Borehole

更多释义

• 1.那个钻孔里已经塞上了塞子。
  A plug had been inserted in the drill hole.
  dict.yoduao.com
• 2.一种高度易燃的液体漏进了钻孔设备。
  A highly inflammable liquid escaped into the drilling equipment.
  dict.yoduao.com
• 3.当钻头上下钻时，要把钻孔保持在中心。
  Keep the drill centred in the borehole while it ascends and descends.
  dict.yoduao.com

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