名词
中文翻译：次级污水污泥
同义词：
['tertiary sewage sludge', 'tertiary wastewatersludge']
例句：
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1.The treatment plant needs to handle a significantamount of secondary sewage sludge.
处理厂需要处理大量的次级污水污泥。
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2.The city has implemented stricter regulations onthe disposal of secondary sewage sludge.
该市对次级污水污泥的处理实施了更严格的规定。
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3. The research focuseson the treatment and reuse of secondarysewage sludge for agricultural purposes.
研究重点在于对次级污水污泥进行治理和再利用，用于农业用途。