基本解釋[動(dòng)力與電氣工程]碰撞損失系數(shù)[經(jīng)濟(jì)學(xué)]碰撞損失系數(shù)專業(yè)釋義動(dòng)力與電氣工程碰撞損失系數(shù)經(jīng)濟(jì)學(xué)碰撞損失系數(shù)