primary air一次空气,一次助燃空气,一次风,主空气,一次空气主空气primaryadj.首要的；主要的；初级的；初等教育的；根本的；初期的n.第一位；初选；最主要者；要素；原色；初级线圈Primary Analysis on Cryptology Date浅析数据加密技术primary African green monkey kidney原始非洲绿猴肾脏primary support of composite lining复合式衬砌初期支护Primary grinding and classification一段磨矿分级primary mucinous carcinoma of liver肝原发性粘液癌Primary malignant tumor of duodenum十二指肠原发恶性肿瘤Primary Control and Analysis Center基层控制分析中心Primary hypertrophic cardiomyopathy原发性肥大性心肌病primary rat airway epithelial cells大鼠气道上皮细胞Primary Aerospace Vehicle Inventory主要航空航天飞行器清单