acid and alkali treatment的用法和样例：
- The quality good main item deleading technology contains the acid and alkali treatment process, can cause Shui who flows through the main item Han the lead quantity minimum.
- The acid and alkali are combined into salt.
- Acid and alkali are the basic concept of chemistry.
- The technology of abstracting molybdenum,cobalt and nickel from catalyst by acid treatment,extraction and alkali treatment was studied in this article.