英语词汇“A roller bit”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	A roller bit
释义	A roller bit 基本例句牙轮钻头 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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