wastewater into septic tanks
Wubei hospitals use biological contact oxidation, wastewater into septic tanks, sludge precipitation for anaerobic digestion, sewage and sludge in the part of the decomposition of organic matter.
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wastewater into septic tanks
污水排入化粪池
以上为机器翻译结果，长、整句建议使用 人工翻译 。