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彩云香江 on Twitter: "Latest images show that the J-20A is equipped with indigenous WS-10C engine, and the new luneburg lens radar reflector is also retractable(Images 1-2), but it was powered by Russian
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How Luneburg lens radar reflectors are used to make stealth aircraft visible on radar screens - The Aviation Geek Club
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Three‐dimensional Luneburg lens at optical frequencies - Zhao - 2016 - Laser & Photonics Reviews - Wiley Online Library
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The model of a perforated Luneburg lens, cut in the middle (a), side... | Download Scientific Diagram
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