slag rale

例句：

1. 1.The factory produces a lot of slag rale every day.
   这家工厂每天产生大量的渣滓。
2. 2. The workers were askedto sort through the slag rale and find any useful materials.
   工人们被要求分拣这些渣滓，找出任何有用的材料。
3. 3. The slag rale was used as fertilizer forthe garden.
   这些渣滓被用作花园的肥料。