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  • NF T31-230-15-2019 General methods of test for pigments and extenders - Part 15 : comparison of resistance...2024-02-01
  • JJG 185-2017 500Hz~1MHz标准水听器检定规程(自由场比较法) Standard Hydrophones in the Frequency Range 500 Hz to 1...2023-12-12
  • NF EN ISO 787-25-2019 General methods of test for pigments and extenders - Part 25 : comparison of the colo...2023-11-10
  • DIN EN ISO 787-17-2018 General methods of test for pigments and extenders - Part 17: Comparison of lighteni...2023-08-02
  • BS EN ISO 787-21-2017 General methods of test for pigments and extenders. Comparison of heat stability of ...2023-07-07
  • ASME STP-NU-078-2016 COMPARISON REPORT ON WELDING QUALIFICATION AND WELDING QUALITY ASSURANCE2023-05-06
  • JB/T 9832.1-1999农林拖拉机及机具.漆膜色差目视评定方法Tractors and machinery for agriculture and forestry - V...2022-06-14
  • JJG 546-2010直流比较电桥检定规程DC Comparison Bridges2022-06-10
  • GB/T 5211.20-1999在本色体系中白色、黑色和着色颜料颜色的比较 色度法Comparison of the colour,in full-shade sys...2022-06-10
  • GB/T 6060.2-2006表面粗糙度比较样块磨、车、镗、铣、插及刨加工表面Roughness comparison specimens—Ground,turne...2022-06-06
  • 全球能源展望比较方法Global Energy Outlooks Comparison Methods in 20182021-09-09
  • Contrastive Analysis:A Phonetic Case2020-11-22
  • Comparative Process for the Preparation of 9-Oxime Erythromycin A2020-11-11
  • 运煤输电对比研究2020-09-18
  • 循环水系统水泵及冷却塔改造节能效果分析2020-06-12
  • 低温甲醇洗气体净化工艺的比较2020-06-12
  • 循环水系统水泵及冷却塔改造节能效果分析2020-03-24
  • 低温甲醇洗气体净化工艺的比较2020-03-24