numismats
plural of desacetylation
A wheel composed of an abrasive compound and used for various grinding and abrasive machining operations. / (figuratively, by extension) Something that wears down or harms by attrition.
(organic chemistry) Any flavonol based on a pyran group
plural of numismat
数人の貨幣収集家が博物館の特別展で珍しいローマの硬貨を調べた。
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