assayer
A surname.
Alternative form of longevous
(inorganic chemistry) The compound formally derived from phosphoric acid by replacement of three oxygen atoms by those of phosphorus HO-PS(SH)₂
One who assays, or performs chemical tests on metals.
金属の化学分析を行う鑑定者は、鉱石の小さな試料を慎重に溶かして純度を調べた。
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