surrogaten.代理人；代用品；代孕者adj.替代的surrogate standard代标标样surrogate genetics替代遗传学, 反向遗传学surrogate indicator替代指示物surrogate end point替代终点surrogate parameter替代参数surrogate pregnancy代替怀孕Surrogate Data Radio代用数据电台surrogate technology代孕技术surrogate constraint替代约束Surrogate Investment代为投资