secondary PSV次程序状态向量, 辅助程序状态向量secondaryadj.次要的；从属的；中等教育的n.副手；次要位置secondary instrument二次仪表,辅助仪器,二次侧仪表,次级仪表Secondary Zinc Oxide次氧化锌secondary air system二次风系统secondary flavucidin次级瑕secondary statistics间接统计secondary cosmic ray次级宇宙线secondary grout hole二期灌浆孔secondary efficiency二次效率secondary stretching二次张拉secondary bronchitis继发性支气管炎