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4d
太炸裂了!东大展示的新神器,要彻底把老美退路断了
有物理常识的朋友都知道,物体在超音速飞行时,会产生巨大的摩擦使得表面过热,同时飞机的机体也会因为这种摩擦而产生剧烈的抖动,导致零部件出现松动,为了解决这个问题,协和号在机体材料和结构上花了很大的功夫。
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1mon
阿塞拜疆航空公司一客机坠毁,涉事机型为巴航工业E190
少部分为巴航工业支线客机。 具体情况,数量最多的是空客A320系列飞机,目前有13架在运营、1架停场;空客A319和空客A340分别有4架和3架;波音757 ...
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