di·sulfonic acidAHD|dī+..-短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 二磺酸 The experiments for separating the mixture of Benzene-1, 3- disulfonic acid and sulfuric acid from a chemical plant were studied by using the methods of chemical precipitation and complex extraction. 本论文采用化学沉淀法和络合萃取法分别对某化工厂提供的间苯二磺酸和硫酸的混合物进行了分离研究。 dictall