secondary bus辅助总线
secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
secondary field副磁场,次级场
secondary ideal第二理想
secondary match二次匹配
secondary alloy再生合金,再熔合金
secondary error二次误差
secondary floor二楼
secondary plate次级板(动)
secondary levee副堤
secondary tense次要时态
secondary waste间接废物