primary arm主臂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 hypothyroidism and adrenocortical insufficiency原发性甲状腺功能减退和肾上腺功能不全Primary hepatocarcinoma presenting extrahepatic symptoms首发肝外症状的原发性肝癌primary malignant lymphoma of the gastrointestinal tract胃肠道原发性恶性淋巴瘤primary-and-secondary-item-choice teaching method“主副项制”primary choriocapillaris-retinal pigment epithelium dystrophy原发性脉络膜毛细管-视网膜色素上皮营养不良