专利 一种智能型英语教学装置
ISO TS 19014-5 2021 Earth-moving machinery — Functional safety — Part 5 Tables of performance levels.pdf
ISO 22908 2020 Water quality Radium 226 and Radium 228 Test method using liquid scintillation counting.pdf
ISO 14123-1 2015 Safety of machinery — Reduction of risks to health resulting from hazardous substances emitted by machinery — Part 1 Principles and specifications for machinery manufacturers.pdf
ISO 1496-3 2019 Series 1 freight containers — Specification and testing — Part 3 Tank containers for liquids, gases and pressurized dry bulk.pdf
ISO 7769 2009 Textiles — Test method for assessing the appearance of creases in fabrics after cleansing.pdf
ISO 3705 1976 Sulphur for industrial use — Determination of arsenic content — Silver dieth.pdf
ISO 13153 2012 Framework of the design process for energy-saving single-family residential and small commercial buildings.pdf
ISO 8688-2-1989Tool life testing in milling. Part 2_End milling first edition.pdf
ISO 230-1 2012 Test code for machine tools — Part 1 Geometric accuracy of machines operating under no-load or quasi-static conditions.pdf
ISO 3953 2011 Metallic powders — Determination of tap density.pdf
GB-T 43294-2023 教育与学习服务 术语.pdf
GB-T 22311-2008 道路车辆 制动衬片 压缩应变试验方法.pdf
GB-T 19405.1-2003 表面安装技术 第1部分 表面安装元器件规范的标准方法.pdf
GB-T 19015-2021 质量管理 质量计划指南.pdf
GB-T 15448-2013 电子设备用固定电容器 第19部分 分规范 表面安装金属化聚乙烯对苯二甲酸酯膜介质直流固定电容器.pdf
GB-T 44570-2024 塑料制品 聚碳酸酯板材.pdf
GB-T 26955-2011 金属材料焊缝破坏性试验 焊缝宏观和微观检验.pdf
GB-T 1839-2008 钢产品镀锌层质量试验方法.pdf
GB-T 28892-2024 表面化学分析 X射线光电子能谱 选择仪器性能参数的表述.pdf
GB-T 25931-2010 网络测量和控制系统的精确时钟同步协议.pdf