unibin.单级和双极晶体管放大器UNIabbr.印度联合新闻社(=United News of India)uninterruptednessn.不停(不间断；连续)unicast switching单播交换unicentric growth单中心性生长unidentate ligand单齿配位体; 一合配位体unimproved runway未铺筑道面的跑道unipotential lens单电位透镜unicursal surface单行曲面unified operation统一操作unislip propeller等滑脱推进器uniprocessor chip单处理器芯片