製造該引(yǐn )擎前葉片的鈦金屬，在純化過(🚸)程中未能完全將氧、氮(dàn )等雜質提出，造成葉片容易因金(🖊)屬疲勞而斷裂。

此节(jiē )目主要介绍1970年代黑盒子发明之后所(👐)发生的近代重大航(háng )空事故。

There is a geography of miracles.　　Jonasz studies insects and fishes, Signe leaves and herbs. After a day spent in gardens and libraries, they meet, take the train and leave the city, pitching their tent on the shores of a lake. As they read, eat fruit, wander the forest and swim in the cold water, the outside world feels further and further away. A stranger appears and a trio i...。

以(yǐ )不为人知的心路历(⛷)程、无(🛬)法复刻的创业故事，真实反(fǎn )映了中国第三代创业者的真(🛢)实创业经历、生存状态与(yǔ )精神追求。

这次登山队再次攀(⏬)登到了最高峰，并记录(lù )下了一场生与死的旅程。

此节目对(📱)于飞机外观、空服(fú )员制服、机场等制(zhì )作考究，但也并(🌷)非100%做到(🔻)与当时完全(quán )一样，偶有不相符(fú )之处，如波音737驾驶(🏁)室变成(😱)空中客车A320驾驶室。