assayer

n.

试金者，分析专家；

Assayer's scale
The assayer 1623
Excerpts from The Assayer
AUTOMATIC IRON ORE ASSAYER
Letter to the Grand Duchess Christina and The Assayer
Mint Mark, Coin, Mint (coin), Debasement, Precious metal, Assayer, Monnaie de Paris, Privy mark
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The Assayer's Manual. an Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products ... Tran...
THE TALE OF SOUND FROM GALILEO'S 'ASSAYER' AS AN ARGUMENT AB EXEMPLA (Bajka o dzwieku z wagi probierczej jako argument ab exempla. G...
The Assayer's Manual. An abridged treatise on the docimastic examination of ores, and furnace and other artificial products ... Tran...