短语词组短语unifocal lens 单焦透镜unifocal eosinophilic granuloma 单发嗜曙红细胞肉芽肿theory unifocal impulse formation 释义单灶性冲动形成学说occasional unifocal ventricular premature beat 偶发单源性室性早搏theory of unifocal impulse formation 单灶性冲动形成学说 返回 unifocal