| 词汇 | assay | 
| 释义 | assay  verb [ T ]  chemistry specialized uk/əˈseɪ/ /æsˈeɪ/ us/æsˈeɪ/ /əˈseɪ/  鉴定,化验,分析(化学物质的纯度) to examine a substance to find out how pure it is or what its properties (= qualities) are  He never returned to the lab to assay the other samples.  Ores from there have been assayed and are known to be rich in gold and silver. 
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