GB 50497-2019.Technical standard for monitoring of building excavation engineering.1总则1.0.1 为规范建筑基坑工程监测工作,保证监测质量，提供信息化施工和优...
GB/T 51417-2020.Technical standard for joint construction and sharing of telecommunication steel tower.1总则1.0.1 为进一步推进和规范电信钢塔架的共建共享工作,制...
GB/T 51399-2019.Technical standard for cloud computing infrastructure engineering.1总则1.0.1 为统一和规范各行业云计算基础设施工程建设,使云计算基础设施工...
GB/T 38621-2020.Transient thermal test method for light emitting diode modules.1范围GB/T 38621规定了由单个、多个发光二极管(LED)芯片或器件组成的LED模块热特性...
GB/T 2481.2-2020.Bonded abrasives-Determination and designation of grain size distribution-Part 2 :Microgrits.1范围GB/T 2481的本部分规定了刚玉、碳化硅微粉F230~ F200...
GB/T 5226.34-2020.Electrical safety of machinery-Electrical equipment of machines一Part 34: Requirements for machine tools.1范围GB/T 5226的本部分规定了机床电气设备及系...
GB/T 2889.2-2020.Plain bearings-Terms, definitions , classification and symbols-Part 2:Friction and wear.1范围GB/T 2889的本部分界定了与滑动轴承摩擦和磨损相关的最...
GB/T 2889.3-2020.Plain bearings-Terms， definitions , classification and symbols-Part 3:Lubrication.1范围GB/T 2889的本部分界定了与滑动轴承润滑相关的最常用的术...
GB/T 24637.4-2020.Geometrical product specifications (GPS)-General concepts-Part 4:Geometrical characteristics for quantifying GPS deviations.1范围GB/T 24637的本部分给出了单...
GB/T 38762.2-2020.Geometrical product specifications(GPS) 一Dimensional tolerancing一Part 2:Dimensions other than linear or angular sizes.1范围GB/T 38762.2说明了应用尺寸规...
