secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
secondary lob二次凸起
secondary cup次杯
secondary cut多次切割
secondary sex次级性别
secondary key次关键字,辅助键,辅助关键字
secondary rib副肋, 副棱, 副肋状突起
secondary ion二次离子
secondary plot副区
secondary coat第二道粉刷
secondary beam次梁