oxygen-activated sludge的用法和樣例：
例句
- These three converters are all pure oxygen top-blown.
這三座轉爐都是純氧頂吹的。 - Using oxygen autogenous smelting technology process secondary coppe concentrate with nickel,basiclly perfect process spontaneous heating and batch production were brought about.
採用純氧自熱熔煉技術處理合鎳二次銅精礦，可基本實現過程自熱和連續生產。
