短語詞組短語equation mass -conservation 質(zhì)量守恒方程式mass abundance conservation 質(zhì)量守恒charge -mass unified conservation 荷Nodal mass -conservation equation 節(jié)點(diǎn)質(zhì)量守恒方程law of mass conservation 質(zhì)量守恒定律mass conservation principle 質(zhì)量守恒原理global mass conservation law 整躰質(zhì)量守恒槼律mass conservation equition 質(zhì)量守恒方程Mass conservation constrant 質(zhì)量守恒約束 返回 mass conservation