GB/T 33746.2-2017
Technical specification of NFC security—Part 2: Security mechanism requirements 近场通信(NFC)安全技术要求 第2部分:安全机制要求 |
GB/T 34041.2-2017
Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 2: Meters for industrial applications 封闭管道中流体流量的测量 气体超声流量计 第2部分:工业测量用气体超声流量计 |
GB/T 18266.3-2017
Ranking standard for sports facilities—Part 3: Star-rating standard for natarorium 体育场所等级的划分 第3部分:游泳场馆星级划分及评定 |
GB/T 34041.1-2017
Measurement of fluid flow in closed conduits—Ultrasonic meters for gas—Part 1: Meters for custody transfer and allocation measurement 封闭管道中流体流量的测量 气体超声流量计 第1部分:贸易交接和分输计量用气体超声流量计 |
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