equipment for urban sewage treatment
equipment for urban sewage treatment
城市污水处理设备
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The most common emergence of odour comes from the Urban sewage system, mainly in the total pipelines and equipment for treatment.
城市废水管网系统中臭气的最常见的发生源主要有下水道总管道和泵站。
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