Moreover, even if J-20 really appeared in the Daocheng Yading Airport, it may turn out to be a high altitude performance test.
即便歼- 20真的出现在亚丁机场，很可能也只是进行高原性能测试。
Moreover, even if J-20 really appeared in the Daocheng Yading Airport, it may turn out to be a high altitude performance test.
即便歼- 20真的出现在亚丁机场，很可能也只是进行高原性能测试。
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