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06:07
FAA NextGen Gate to Gate 新一代飛航管理系統- 門戶直達 [CC字幕]
1880
B1
1
![FAA NextGen Gate to Gate 新一代飛航管理系統- 門戶直達 [CC字幕]](https://img.youtube.com/vi/OZ8NNuqaaN4/hqdefault.jpg)
06:07