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英语翻译Sources of grey water must be routed through a vented gr

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英语翻译
Sources of grey water must be routed through a vented grey water waste stack rather than sharing the soil stack into which toilets discharge.The grey water drainage system should be designed in copliance with section 3of CIBSE Guide G:Public health engineering,the institute of Plumbing and Heating Engineering's Plumbing engneering services design guide and relevant British Standards.It should be constructed from standdard plastic drainage pipes ang fittings in high density PE ,PVCor ABS plastic.Corrosive materials,which could discolour or conaminate collected water ,should generally be avoided although ductile iron may be considered for buried pipes if ground conditions do not suit the yse of plastics.
灰水来源必须经由排气孔将灰水残渣排出,而不能排入地下或者在厕所排放. 灰水排水系统设计富有北欧3大标准引导:公众卫生工程研究所、水管和供热工程中的水管工程服务设计指南和英国有关标准.它应该由标准塑料排水管以及高密度聚乙烯配件,PVC或ABS塑料制成. 虽然球墨铸铁可能考虑要被埋入水管,但如果地面状况并不适合yse塑料,一般应避免腐蚀性物质,可变色或联销收集的水.