Home / Standards / GB/T 44821.2-2024 GB/T 44821.2-2024 Active Technical requirements for stratospheric airship—Part 2:Propulsion system 平流层飞艇通用技术要求 第2部分:推进系统 Standard Type GBT ICS 49.050 CCS V40 Status 现行 Issue Date 2024-10-26 Implementation 2025-05-01 Responsible Dept 国家标准委 Drafting Unit N/A