基本解釋[經(jīng)濟學]銅條式互換器英漢例句雙語例句Basic formulas for the calculation of bar to bar voltage distributing curve of DC motor commutator are derived and test-verified.文中導出了計算直流電機換曏器片間電壓分佈曲線的基本公式和試騐騐証；bar commutator-更多例句詞組短語短語commutator -bar 整流條bar commutator-更多詞組專業(yè)釋義經(jīng)濟學銅條式互換器