GB/T 45521-2025 Chinese PDF (GB /T45521-2025) GB 45185-2024 English versions: GB/T 44931-2024

English versions: GB/T 44931-2024

2-2025_Chinese: Nanotechnology - Nanogenerator - Part 2: Test methods for electric performance of triboelectric nanogenerators (Chinese: 纳米技术 纳米发电机 第2部分：摩擦纳米发电机电性能测试方法)

GB/T 45407-2025_Chinese: Information technology - Cyberspace map (Chinese: 信息技术 网络空间地图)

English versions: GB/T 45510-2025

English versions: GB/T 45363-2025

GB/T 45521-2025 Chinese PDF (GB /T45521-2025) GB 45185-2024 English versions: GB/T 44931-2024GB T 45521 2025_Chinese: Smart community infrastructures Guidelines on data exchange and sharing for community infrastructures based on geographic information (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45521 2025