Unkan温坎
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
uncoupled K-G model解耦K-G模型
unfailing performance可靠性能
unbalanced protection不平衡保护
unblocking sweat pore开通玄府
untriggered spark gap非触发式火花隙
unreduced dislocation[医] 未复性脱位
undifferentiated cell未分化细胞
unredressed injustice不白之冤
undetermined boundary[法] 未定边界
unmuzzle the press.取消对新闻界的限制