英语词汇“ester gum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	ester gum
释义	WordReference Random House Unabridged Dictionary of American English © 2024 es′ter gum′, [Chem.] Chemistryany of several hard resins produced by the esterification of a natural resin, esp. rosin, with a polyhydric alcohol, chiefly glycerol: used in the manufacture of paints, varnishes, and lacquers. 1935–40
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