secondary bow霓
secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
secondary accuracy次准确性
secondary harmonic二次谐波
Secondary windings次级线圈
Secondary Reheater二级再热器
secondary indexing副索引
secondary bronchus次级支气管
Secondary launcher二级火箭
secondary recovery二次开采
secondary memories次记忆单位
secondary polarity副边