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

词汇	positive shift
释义	positive shift 基本例句正位移 Pumps in which displacement is accomplished mechanically are called positive displacement pumps.用机械方法完成位移的泵称为正位移泵。
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