fouled sulfuric acid

• 不纯的硫酸

fouled sulfuric acid的用法和样例：

例句

1. Most sulfuric acid is made by the contact process.
   大多数的硫酸是用接触法制造的。
2. His prototype used dilute sulphuric acid and operated at room temperature.
   他当时的做法用的是稀释的硫酸，而且是在室温下进行操作。
3. The same amount of analar or aristar grade sulphuric acid is added as matrix,achieving matrix-matched,and satisfactory calibration.
   绘制校准曲线用标准溶液，加入与测定样品相同量的分析纯硫酸为基体。