slag cleaning

例句：

1. 1. The factory needs to clean up its slag before the next shift starts.
   工厂需要在下一班开始前清理其渣滓。
2. 2. The slag cleaning process is crucial for maintaining the stability of the reactor.
   渣滓清理过程对于保持反应器的稳定性至关重要。
3. 3. The company has invested heavily in developing new technologies for slag cleaning.
   该公司投入了大量资金开发新的渣滓清理技术。