航空、航天科学技术
可导航空域
可航空域
So, too, would one operating outside of public navigable airspace, though defining exactly where that lies for UAVs can be complex.
FORBES: Will "Drones" Outflank the Fourth Amendment?
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。