Assayer

[ә'seiә]

解释:

(noun.) an analyst who assays (performs chemical tests on) metals.

杰拉尔丁校对--From WordNet

解释:

(n.) One who assays. Specifically: One who examines metallic ores or compounds, for the purpose of determining the amount of any particular metal in the same, especially of gold or silver.

校对:弗恩