GB/T 38931-2020民用轻小型无人机系统安全性通用要求标准
英文:General requirements for safety of civil small and light unmanned aircraft system GB/T 38931-2020介绍: 国家标准《民用轻小型无人机系统安...
英文:General requirements for safety of civil small and light unmanned aircraft system GB/T 38931-2020介绍: 国家标准《民用轻小型无人机系统安...