spent sulphuric acid

• 废硫酸

spent sulphuric acid的用法和样例：

例句

1. During the production of trichloroacetaldehyde , waste surfuric acid as the by-products would causes second pollution due to its high aldehyde-content.
   三氯乙醛生产工序排放的废硫酸因含醛高而多次发生二次污染现象。