结果是，像美国F-117A一类的隐形战机的雷达反射信号出仅仅如一只小鸟，而并非一架飞机。
The overall result is that a stealth aircraft like an American F-117A reflects the radar signature of a small bird rather than an airplane.
雷达信号接触到飞机的任何部位，都会有部分被反射回来。
No matter where the radar signal hits the plane, some of the signal gets reflected back.
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).
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