短語(yǔ)詞組短語(yǔ)load eccentricity ratio 荷載偏心率axial eccentricity ratio 軸向偏心率unbalance eccentricity ratio 質(zhì)量偏心率rodius -to-eccentricity ratio 轉(zhuǎn)子半徑偏心距比 返回 eccentricity ratio