Ursan.[天]大熊星座;[天]小熊星座
Urn.铀
Uromyces sommerfeltiin.萨氏单胞锈菌
Urocerus lijiangensis丽江大树蜂
Urticaria due to cold寒冷致荨麻疹
uric sugar test paper尿糖试纸
Uromyces inaequialtusn.不等单胞锈菌
ursodesoxycholic acid乌索脱氧胆酸,熊去氧胆酸
Uromyces viciae fabaen.蚕豆单胞锈菌
uridine phosphorylase尿(核)苷磷酸化酶, 尿(嘧啶核)苷磷酸化酶
Urtica cannabina L.掀麻
Urtica mairei Levl.滇藏荨麻