Assay Office
noun/əˈseɪ ɒfɪs/
/əˈseɪ ɑːfɪs/
- (in the UK) any of the offices where gold, silver and platinum are tested and given hallmarks (= small marks showing the quality of the metal). There are four such offices in Britain: in London, Birmingham, Sheffield and Edinburgh.
化验室：任何测试过金，银和铂金并具有标记的办公室。在英国有四个这样的办事处：在伦敦，伯明翰，谢菲尔德和爱丁堡。