信通院 数字孪生城市成熟度研究报告 2022年
ISO 3401-1991Cigarettes. Determination of alkaloid retention by the filters. Spectrometric method se.pdf
ISO 19563 2017 Determination of theanine in tea and instant tea in solid form using high-performance liquid chromatography.pdf
ISO IEC 11179-31 2023 Information technology — Metadata registries (MDR) — Part 31 Metamodel for data specification registration.pdf
ISO 14827-3 2019 Transport information and control systems Data interfaces between centres for transport information and control systems Part 3 Data interfaces between centres for intelligent transp.pdf
ISO 6517 2013 Air cargo — Certified lower deck containers — Design and testing.pdf
ISO 14269-5 1997 Tractors and self-propelled machines for agriculture and forestry — Operator enclosure environment — Part 5 Pressurization system test method.pdf
ISO 23572 2020 Petroleum products — Lubricating greases — Sampling of greases.pdf
ISO IEC 20944-2 2013 Information technology — Metadata Registries Interoperability and Bindings (MDR-IB) — Part 2 Coding bindings.pdf
ISO 23537-2 2023 Requirements for sleeping bags — Part 2 Fabric and material properties.pdf
ISO 21815-3 2023 Earth-moving machinery — Collision warning and avoidance — Part 3.pdf
GB-Z 32458-2015 输送粘性液体的离心泵 性能修正.pdf
GB-T 16284.7-1996 信息技术 文本通信 面向信报的文本交换系统 第7部分 人际信报系统.pdf
GB-T 7154.1-2003 直热式阶跃型正温度系数热敏电阻器 第1-1部分 限流用空白详细规范 评定水平EZ.pdf
GB-T 7164-2022 用于核反应堆的辐射探测器特性及测试方法.pdf
GB-T 21451.4-2008 石油和液体石油产品 储罐中液位和温度自动测量法 第4部分 常压罐中的温度测量.pdf
GB-T 20513-2006 光伏系统性能监测 测量、数据交换和分析导则.pdf
GB-T 9861-2008 成像材料 照相胶片和相纸 照相乳剂湿抗划伤的测量方法.pdf
GB-T 25278-2010 塑料 用毛细管和狭缝口模流变仪测定塑料的流动性.pdf
GB-T 19949.3-2005 道路车辆 安全气囊部件 第3部分 气体发生器总成试验.pdf
GB-T 38314-2019 宇航用锂离子蓄电池组设计与验证要求.pdf