不變微分算子 differential invariant: 微分不變式differential operator: 微分算子, 微分算符; 微分運(yùn)算子invariant differential equations: 不變微分方程topologico differential invariant: 拓?fù)湮⒎植蛔兪?/li>dyadic differential operator: 并元微元算子下載手機(jī)詞典可隨時隨地查詞查翻譯