The January flight was key to reducing risks as the program prepares for autonomous aerial refueling of two Global Hawks in the spring of 2012.
1月飞行测试的关键是减少KQ - X项目风险，为2012年春天进行的两架全球鹰无人机自主空中加油做好准备。
The flight test was conducted in the challenging high altitude environment required for refueling of high altitude long endurance (HALE) unmanned aircraft systems (UAS).
这次飞行测试是在充满挑战的高空环境下进行的，这也是高空长航(HALE)无人机(uas)加油所需的环境。
The program would be responsible for flight tests of new technologies such as autonomous rendezvous and docking, in-orbit refueling, and inflatable habitat modules.
这个计划将负责进行一些诸如飞行器自动会合和外层空间对接，以及轨道内加油和充气式居留舱等新技术的试验。
The disturbances acting on the receiver aircraft in the docking phase of an aerial refueling are analyzed and the truth of longitudinal flight control of the receiver is introduced.
分析了空中加油对接过程中受油机受到的各种扰动，阐述了插头锥管加油方式受油机的纵向飞行控制原理。
Vibration of fixed air refueling receptacles that can occur in flight causes serious hazards to the safety of flight.
飞机采用固定式空中受油装置后，可能引起飞机飞行过程中的振动，严重时危及飞机的飞行安全。
Before the first nonstop flight made in 1949, it had been necessary for all planes to land for refueling.
在1949年第一次直达航班开通前，所有飞机都必须要着陆加油。
Before the first nonstop flight made in 1949, it had been necessary for all planes to land for refueling.
在1949年第一次直达航班开通前，所有飞机都必须要着陆加油。
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