multiple sum多重和multipleadj.多种多样的；许多的n.倍数；并联multiple leaf valve多簧片阀multiple stethoscop多管听诊器[教学用]Multiple compatible多重兼容multiple shock wave多重激波multiple-arc unit多弧焊接机multiple infectious多重感染multiple scanmethod多升温速率法multiple crossovers多交换multiple parasitism多寄生multiple phase flow多相流