secondary end次级端
secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
Secondary forest area次生林地
secondary arc current潜供电流
secondary attack rate二代发病率,续发率
secondary disjunction第二次(减数分裂)染色体不分离
secondary individuals(除开家长的)家庭成员
secondary pump system二次泵
secondary geosyncline次生地槽
secondary predication次级谓语
secondary expenditure次要支出
secondary circulation二级环流,次级环流