A roller bit

 
       
  • 牙轮钻头

A 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。

A roller bit的海词问答与网友补充:

提问补充

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