| 释义 |
h2so4
基本例句
硫酸
H2SO4 is at least 100 times as lethal as SO2 in guinea pigs.在豚鼠中，硫酸致死性至少为二氧化硫致死性的一百倍。
The instant a piece of iron is placed in a jar containing H2SO4,it begins to react with the acid.一块铁一投入装有硫酸的瓶中，就立即开始与酸起反应。
H2SO4 is a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry.硫酸一种极具腐蚀性的酸，由二氧化硫制成，广泛用于化学工业中。
The instant a piece of iron is placed in a jar containing H2SO4, it begins to react with the acid.一块铁一投入装有硫酸的瓶中，就立即开始与酸起反应。
Emodin was synthesized by demethylation of physcion.Three catalysts of demethylation,AlCl3,H2SO4 and HBr,were compared.目的与方法将大黄素甲醚脱甲基制备大黄素,对以三氯化铝、浓硫酸、氢溴酸作为催化剂的3种方法进行比较。 |