The backward diffraction on the shadow area of aircraft and its components having low radar-cross-section (RCS) is one of the main contributions of their RCS.
阴影区的后向绕射是低散射截面飞行器和部件rcs的主要贡献之一，有效地抑制它可以进一步地减缩rcs。
It was clipped from an old faded Poloroid taken while it was parked at RDU airport and the landing gear was not visible in the SUNS shadow - hence no landing gear on the otherwise fixed gear aircraft.
它是从旧的已褪色的Poloroid照片剪贴下来，当时它停在RDU飞机场而且起落架在太阳阴影下看不见-因此在固定齿轮飞机上没有起落架。
Electrical Engineering and Automation tentacles all walks of life, small to a switch designed to study aerospace aircraft, has its shadow.
电气工程及其自动化的触角伸向各行各业，小到一个开关的设计，大到宇航飞机的研究，都有它的身影。
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