... unit purchased cost 购买单价 unit process cost 分步单位成本 Unit_cost 单位造价 ...
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In this research, a kind of low-cost municipal wastewater treatment process, which consists of Hydrolysis, Anaerobic, micro-aerobic unit, is studied.
本文对一种低耗的城市污水水解—厌氧—微氧联合处理工艺进行了研究。
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