concaver
plural of Rigan
The hewing or dressing of stone.
(organic chemistry) The aromatic nitrile C₆H₅-CH₂-CN
A person employed to give a concave shape to razors as they are manufactured.
カミソリを凹面に仕上げる職人が、刃に正確な凹みを付ける前に各カミソリの素地を入念に点検した。
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