常見例句雙語例句The influence of variable load on a beam pumping unit on the electric current, input power, efficiency and power factor of the electric motor is discussed, and relevant calculating formulae are given.討論了游梁抽油機的變動載荷對電動機的電流、輸入功率、效率和功率因數(shù)的影響，給出了計算公式。 返回 variable factor input