短语词组短语completely random mating system 释义完全随机交配系统Full Diallel Mating System 双列杂交遗传测定mechanization mating system 机械化配套系统three -cycle mating system 三轮杂交系统submarine -rescue vehicle mating system 潜艇system of mating 繁育体系 返回 mating system