gas collecting main

例句：

1. 1. The gas collection main is responsiblefor the safe disposal of hazardous waste.
   气体收集主负责危险废物的安全处置。
2. 2. Thegas collection main is crucial for maintaining aclean and healthy environment.
   气体收集主对于保持清洁和健康的环境至关重要。
3. 3. The gas collectionmain is designed to minimize emissions and reducepollution.
   气体收集主旨在减少排放和降低污染。