隐形飞机依赖其外形来逃避雷达，这种外形能避免雷达波从机体资源上反射信号、且含有能吸收雷达能量的物质。
Stealth aircraft rely on shapes that prevent radar waves from bouncing back to their sources and on materials that absorb radar energy (stealth-plane time line).
安装在外置燃料箱上的一台摄像机向世人展示了航天飞机爬升至太空的全过程，其间没有出现任何可能造成机体损伤的保温泡沫或其他剥离物的迹象。
A camera mounted on the shuttle's external tank provided dramatic views of the climb to space with no obvious signs of foam insulation or other debris that might have caused any damage.
在飞机结构寿命理论的基础上，结合小型无人机机体结构特点，建立了小型无人机机体寿命分析方法。
Bases on the aircraft structure fatigue life theory, consider the characteristics of small UAV, the model of fatigue life prediction for small UVA structure is established.
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