英语词汇phthalic anhydride怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	phthalic anhydride
释义	phthalic anhydride noun mass noun 1 Chemistry a crystalline compound made by oxidizing naphthalene, used as an intermediate in the manufacture of plastics, resins, and dyes 【化】邻苯二甲酸酐; 酞酐。 1.1 A bicyclic anhydride; chem. formula: C₆H₄(CO)₂O. 一种二环酐; 化学分子式： C₆H₄(CO)₂O. 词源 mid 19th cent.: phthalic, shortening of naphthalic （see NAPHTHALENE）.
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