spent acid

• 废酸

spent acid的用法和样例：

例句

1. Single-pipe filling rising film condensation and crystal desalination is a developed process to treat waste sulphuric acid.
   单管填料升膜浓缩结晶脱盐法是一种治理废酸液的新工艺。
2. The hydrometallurgical process of leaching zinc-containing oxide minerals by titanum white waste acid was investigated.
   研究了钛白废酸浸出含锌氧化物料的湿法冶金过程。
3. Spilt acid discolored the floor.
   泼出的酸弄得地板褪色。
4. It is a short cut to use the free acid.
   可走捷径，那就是使用游离的酸。