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煤钻 meaning in Chinese

coal auger
coal borer
coal drill

Examples

  1. Development of hydraulic coal driller
    液压煤钻的研制

Related Words

  1. 煤自燃造成的火灾
  2. 煤综合利用
  3. 煤垩
  4. 煤萃, 煤馏出物
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