drilling mud

英 美
  • 钻探泥浆
  • drilling n.演练;钻孔
  • mud n.泥;泥浆;诽谤vt.弄脏;抹泥
Noun:
  1. a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole

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