grey boy 2
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They claimed thats for letting the radar stations to track J-20 during test flight, without that, no trace no track on the radar screen? 图片中,黄色的J-20腹部,挂有龙伯透镜,因此据论坛定理,没有刷隐身涂料的J-20就挂上龙伯透镜试飞,是为了避免地面雷达找不到。J-20隐身性能远超外界想象!