?? ?????C919??????
????:1????????:?????????
2?????????
3??????24????
4????????????
5???????????
????????,12????3??????10?58??,????C919??MU5421“??????????????”???,???????????159???
???C919???,???????????????????????????????????????????????,??C919??7??????
??,?????????B-657T???????C919???????C919?,???WiFi??,??????,???????????????,??“?,?????????????Wi-Fi???????”???????(?? ?? ? ?????????)
???:???