roller bit

 
  • 牙轮钻头
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roller bit的英文翻译是什么意思,词典释义与在线翻译:

英英释义

Noun:
  1. a drill bit that has hardened rotating rollers

roller bit的用法和样例:

例句

  1. The desig ner should consider comprehensively the effect of structure data and radial clea rance on the life of the roller bearing, in order to make optimum design.
    钻头设计要优化轴承结构参数和径向游隙,以提高国产牙轮钻头的寿命。
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