boiler slag

例句：

1. 1. The boiler slag is a waste product that needs to be disposed of properly.
   锅炉渣滓是一种需要妥善处理的废物。
2. 2. The workers had to deal with the boiler slag, which was difficult to clean up.
   工人们不得不处理锅炉渣滓，这很难清理。
3. 3. The company has been working on reducing the amount of boiler slag generated by their equipment.
   该公司一直在努力减少其设备产生的锅炉渣滓量。