单词：spent acid
spent acid的用法和样例：
例句
- 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。
- 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。
- Spilt acid discolored the floor.泼出的酸弄得地板褪色。
- It is a short cut to use the free acid.可走捷径，那就是使用游离的酸。
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