名词
中文翻译：双管道系统
同义词：
['double-pipe system', 'dual-pipe system']
例句：
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1.The two-pipe system is designed to improve the efficiency of wastewater treatment.
双管道系统旨在提高废水处理的效率。
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2. The two-pipe system has been proven to be effective in reducing greenhouse gas emissions.
双管道系统已被证明能有效减少温室气体排放。
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3.The two-pipe system has been implemented in several cities across the country.
双管道系统已在全国多个城市实施。