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 amebic meningo-encephalitis原发性阿米巴脑膜脑炎primary and secondary school teaehers中小学教师primary and middle school headmasters中小学校长primary energyconsumption coefficient一次能源用能系数primary fractionater and quench tower初分馏塔和急冷塔Primary Leadership Development Course初级领导发展课程Primary Components of a Microcomputer微型计算机的主要组成部分Primary calculus of intrahepatic duct原发性肝内胆管结石primary order longitudinal aberration初级轴向像差Primary malignant lymphoma of thyroid甲状腺原发性恶性淋巴瘤