元宇宙科技创新及产业应用白皮书 2022
GB-T 17179.2-2000 信息技术 提供无连接方式网络服务的协议 第2部分 由GB-T 15629(ISO-IEC 8802)子网提供低层服务.pdf
ISO 8092-2 2023 Road vehicles — Connections for on-board electrical wiring harness.pdf
ISO 37159 2019 Smart community infrastructures — Smart transportation for rapid transit in and between large city zones and their surrounding areas.pdf
ISO 8532 1995 Securities — Format for transmission of certificate numbers.pdf
ISO IEC 25022 2016 Systems and software engineering — Systems and software quality requirements and evaluation (SQuaRE) — Measurement of quality in use.pdf
ISO Handbook The second edition of the handbook has been published to help organizations of any sector or industry and size integrate requirements of multiple Management System Standards (MSS) into th.pdf
ISO 11642 2012 Leather — Tests for colour fastness — Colour fastness to water.pdf
ISO 1005-3-1982Railway rolling stock material. Part 3_Axles for tractive and trailing stock. Quality.pdf
ISO 15061 2001 Water quality — Determination of dissolved bromate — Method by liquid chromatography of ions.pdf
ISO-IEC 19778-2 2015 Information technology - Learning education and training - Collaborative technology - Collaborative workplace - Part 2 Collaborative environment data model.pdf
GB-T 37499-2019 燃气燃烧器和燃烧器具用安全和控制装置 特殊要求 自动和半自动阀.pdf
GB-T 11987-1989 表面活性剂 工业烷烃磺酸盐 总烷烃磺酸盐含量的测定.pdf
GB-T 23895-2009 滑动轴承 薄壁轴瓦质量保证 缩小轴承间隙范围的选择装配.pdf
GB-T 43378-2023 飞机用氮气.pdf
GB-T 27548-2011 移动式升降工作平台 安全规则、检查、维护和操作.pdf
GB-T 28775-2021 同步带传动 T型梯形齿同步带轮.pdf
GB-T 2900.85-2009 电工术语 数学 一般概念和线性代数.pdf
GB-T 25297.2-2010 电阻点焊 电极接头,外锥度1 10 第2部分 末端插入式圆柱柄配合.pdf
GB-T 3669-2001 铝及铝合金焊条.pdf
GB-T 41994-2022 工业炉及相关工艺设备 电弧炉炼钢机械和设备的安全要求.pdf