动词短语
中文翻译：移除废渣
同义词：
['remove slag', 'remove slag from', 'scrape out slag']
例句：
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1. Thefactory needs to remove the slag from its furnaces regularly.
工厂需要定期从其炉子中去除废渣。
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2.The engineer scraped out the slag from the bottom of the tank.
工程师从罐底刮去了废渣。
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3.The coal company is responsible for removing slag from their mines.
煤炭公司负责从他们的矿井中去除废渣。