英语释义

1. able to react with two molecules of a monobasic acid or one of a dibasic acid to form a salt or ester —used especially of bases

2. an acid with two acid hydrogen atoms

3. containing two replaceable hydrogen atoms —used especially of acid salts

片语

hexene diacid己烯二酸

tricosane diacid二十三烷二酸

hexane diacid己二酸

butane diacid丁二酸

hexadecane diacid十六烷二酸

ethane diacid乙二酸；草酸

octadecane diacid十八烷二酸

pentene diacid戊烯二酸

eicosene diacid二十碳烯二酸

英汉例句

• Abstr: The polyester polyol was prepared via hydroxylation, modification and esterification by using oleic acid, diacid (or anhydride) and polyhydric alcohol as raw materials.

  文章摘要：以可再生资源油酸、二元酸及小分子多元醇为原料，经环氧开环、支化改性、酯化合成油脂基聚酯多元醇。

• The invention relates to various aromatic diacid ester acetal polymers and a synthesis method of the aromatic diacid ester acetal polymers.

  本发明涉及各种芳香二酸酯缩醛聚合物及其合成方法。

• The production of glyphosate from orthophosphorous acid and pure diacid substituting for dilycolamidic acid was described, and the process was improved with high yield.

  简述了固体亚磷酸和纯二酸替代亚氨基二乙酸盐酸盐和液体亚磷酸生产草甘膦工艺 ，为大生产工艺改进 ，提高草甘膦生产收率。

• The result showed that content of wax and quantity of diacid in fatty acid increased as the fruit, s maturation.

  测试结果表明，随着果实的成熟度增加，它的蜡含量和脂肪酸中的二元酸含量都有所递增。

• The utility model relates to a crystallizer for hexane diacid production equipment, and belongs to a chemical device.

  本实用新型涉及一种适用于生产己二酸装置的结晶器，属化工装置类。