derivativen.派生物；衍生字；导数adj.派生的；(贬)非独创的；庸乏的derivative methods导数法derivative deposit派生存款derivative reagent衍生试剂derivative control导数调节,一次微分控制,导数第derivative trading衍生品交易Derivative Tractor变型拖拉机derivative meaning派生意义；转义derivative theorem微分定理derivative's error早实性状derivative revenue引伸收入