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  • DB13/T 1747-2013菜心高产栽培技术规程2023-04-17
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  • DB12/T 531-2014电梯主要部件判废技术条件The technical conditions for the obsolete of the main components of l...2023-04-17
  • GB 38030.4-2019内河过闸运输船舶标准船型主尺度系列 第4部分:珠江水系“三线”Dimensions series of stan...2023-04-17
  • BS EN ISO 13437-2019 Geosynthetics. Installing and retrieving samples in the field for durability assessment2023-04-17
  • DB13/T 1306-2010“一日游”服务质量规范2023-04-17
  • DB13/T 528-2004速生丰产用材林建设技术规程2023-04-17
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  • GB/T 17804-1999往复式内燃机 图形符号Reciprocating internal combustion engines - Graphical symbols2023-04-17
  • DB13/T 2094-2014甜菜膜下滴灌栽培技术规程2023-04-17
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  • EN ISO 26424-2016精细陶瓷(先进陶瓷、高技术陶瓷) 通过一微型磨损试验测定涂层的耐磨损性Fine ceramics (advanced ...2023-04-17
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