名词
中文翻译：初级污水污泥
同义词：
['primary wastewater sludge', 'primary sewage sludge']
例句：
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1. Thetreatment plant needs to process a large amount of primary sewage sludge daily.
处理厂需要每天处理大量的初级污水污泥。
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2.The primary sewage sludge is then sent to the landfill for disposal.
初级污水污泥然后被送往垃圾填埋场进行处置。
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3. The primary sewage sludge contains a significant amount of organic matter that can be used as fertilizer.
初级污水污泥含有大量的有机物质，可以作为肥料使用。