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  • DB44/T 565-2008 城市森林生态效益监测技术规范 Technical Regulations for Monitoring Ecologica-Benefits of Urba...2023-08-12
  • GA/T 70-2014 安全防范工程建设与维护保养费用预算编制办法 Compiling methods of expense budget for security eng...2023-08-12
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  • DIN 55982-2018 Pigments - Determination of lightening power of white pigments according to the paste method2023-08-12
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  • IEC 60793-1-61-2017 光纤--第1-61部分:测量方法和试验规程--偏振串音 Optical fibres – Part 1-61: Measureme...2023-08-12
  • BS ISO 13909-5-2016 硬煤和焦炭 机械采样 第5部分:焦碳 活动流取样 Hard coal and coke. Mechanical sampling. Cok...2023-08-12
  • BS EN 2221-2017 Aerospace series. Steel FE-PL31. Hardened and tempered. Hollow bars. 3,5 mm ≤ a ≤ 55 mm...2023-08-12
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  • GB/T 40827-2021 枇杷采后处理技术规程 Code of practice of postharvest handling technology of loquat fruit...2023-08-12
  • DZ/T 0332-2020 碳酸盐岩油气藏缝洞体雕刻法资源储量估算规范 Regulation of fracture-cavity space delineation ca...2023-08-12
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