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取水定额 第39部分:煤制合成天然气
参考页数：8
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埋地排水用聚乙烯共混聚氯乙烯双壁波纹管材
参考页数：18
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城镇排水泵站设计标准(附条文说明)
参考页数：61
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一体化预制泵站工程技术标准(附条文说明)
参考页数：29
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水处理设备
UL Standard for Safety Water Treatment Appliances (Second Edition; Reprint with revisions through and including April 25@ 2019)
参考页数：125P.;A4
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建筑物结构内污物和废水排放 (低温和高温) 用塑料管道系统. 未增塑聚氯乙烯 (PVC. U). 第2部分:一致性评估指南; 德文版本CEN/TS 1329-2-2018
Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 2: Guidance for the assessment of conformity; German version CEN/TS 1329-2:2018
参考页数：25P.;A4
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地下排放用就地居住和商业可再利用废水处理系统
Onsite Residential and Commercial Greywater Treatment Systems for Subsurface Discharge
参考页数：53P.;A4
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