roller bit

 
  • 牙輪鑽頭
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roller bit的英文翻譯是什麼意思,詞典釋義與在線翻譯:

英英釋義

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

roller bit的用法和樣例:

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.
    鑽頭設計要優化軸承結構參數和徑向游隙,以提高國產牙輪鑽頭的壽命。
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