The uavs are manufactured by general atomics aeronautical systems , inc.
这些无人飞机是通用原子航空系统公司制造的。
The plane can move 20 or 30 feet up and down , which is quite dramatic for passengers but is of no consequence in aeronautical terms .
飞机可能上下移动20到30英尺，这对乘客来说太夸张了，但是从航空学的角度来看没有什么问题。
The research is published online in the international journal of aeronautical and space sciences .
研究发表在国际航空和空间科学日报的网站上。
This drone , which has a wingspan of 1.2 metres , incorporates a geodetic structure-a lattice-like frame developed in the 1930s by barnes wallis , a british aeronautical engineer .
Alestis , an aeronautical supplier to aircraft manufacturers , filed for bankruptcy earlier this month after failing to reach an agreement with banks to refinance its debts .
