短語詞組短語phosphoric acid anhydride 磷酐acetic -phosphoric anhydride 乙酸磷酸酐;醋酸磷酸酐phosphoric anhydride phosphorus pentaoxide 五氧化二磷phosphoric anhydride sorption 固磷phosphoric anhydride poisoning 五氧化二磷中毒tert -butylcarbonic diethyl phosphoric anhydride 叔丁碳酸二乙基磷酸酐 返回 phosphoric anhydride