unibow左右眉毛长在一起UNIabbr.印度联合新闻社(=United News of India)unipolar precordial lead单极胸导联Unidirectional nystagmus单向眼震uni-function vane pump单作用叶片泵unified microwave system微波统一系统unidirectional diffusion单向扩散unidirectional V antenna单向V型天线unidentifiable parameter不可识别的参数unicolor control circuit单色控制电路unidirectional selection单向选择unidimensional structure单维观