基本解释[无化] 发烟硫酸词组短语短语fuming g sulphuric acid 发烟硫酸sulphuric acid fuming 发烟硫酸;焦硫酸;发烟fuming sulphuric acid更多词组英英字典柯林斯英英字典 a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid (Also called oleum, Nordhausen acid)fuming sulphuric acid剑桥字典fuming sulphuric acid柯林斯字典专业释义化学发烟硫酸领烟硫酸