ash discharge

例句：

1. 1. The factory emitted a lot of ash into the air.
   工厂向空气中排放了大量的灰烬。
2. 2.The firefighters were trying to contain the ash discharge from the building.
   消防员正在努力控制建筑物的灰烬排放。
3. 3.The ash discharge is causing health problems for nearby residents.
   灰烬排放给附近的居民带来了健康问题。