Unar乌纳尔
unaabbr.(英国)联合国协会(=United Nations Association)Una.n.尤娜(女子名)
unallowable instruction digit非法字符
unattended automatic exchange无人值班自动电话交换台
unattended supervision system无人值守监控系统
unacclimated activated sludge未驯化的活性污泥
unappropriated earned surplus[经] 未支配盈余, 留存盈余
unaudited financial statement未审核之财务报表
unappropriated budget surplus[经] 未支配盈余
unauthorized union activities未经许可的工会活动
unappropriated surplus account[经] 未支配盈余帐户
unamortized debenture expenses未摊债券发行费用