acid gas extraction的用法和样例：
- The ore was heated in the kilns to drive off water and carbonic acid gas.
- Acidic gas or water can also ruin the monolith.
- Mr. Sun Hechuan has abundant acknowledge and onsite experience on design and construction of landfill gas extraction system and draining technology.
- The cure characteristics of STW, which was removed from acid gas ,was researched.