名词
中文翻译：渣滓堵塞
同义词：
['slag', 'sludge', 'obstruction']
例句：
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1.The slag occlusion in the tunnel is causing problems for the workers.
隧道中的渣滓堵塞给工人带来了问题。
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2. The slag occlusion in the river has been a major environmental concern.
河流中的渣滓堵塞一直是一个重要的环境问题。
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3. The engineers were working to remove the slag occlusion and improve the flow of the water.
工程师们正在努力清除渣滓堵塞并改善水流。