短語詞組短語fisher type equation fisher 型方程Fisher -like equation 型方程general fisher equation 廣義fisher方程The Fisher Equation 費(fèi)雪方程式Fisher equation of exchange 費(fèi)雪交易方程式generalized Fisher equation 廣義Fisher方程fisher -type equation 型方程generalized burgers fisher equation 廣義burgersExtended Fisher -Kolmogorov equation 廣義Fisher 返回 Fisher Equation