名词
中文翻译：污泥部分
同义词：
['sludge', 'slime', 'sludge fraction']
例句：
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1.The sludge part of the sewage system needs to be treated before it can be released into the environment.
污水系统中的污泥部分需要经过处理才能排放到环境中。
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2.The sludge part of the wastewater treatment plant is a major concern for environmentalists.
废水处理厂的污泥部分是环保人士的主要关切点。
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3.The sludge part of the compost pile contains valuable nutrients that can be used in agriculture.
堆肥堆中的污泥部分含有对农业有用的宝贵养分。