??????????????????????2??????????????3?? ???,???2?????2??????????????,??????,?109??
???????????:?????????????
????(FAA)????,??????????,??????,??,???????,???????
?,????104???????????5??????????????????????????????:“????,?????????????,??????????”??,????
??????????:????????????
???:???????????:????????
????????????????????
?????????????????????
??????6.6???????10??
???????!??????20???????
??????????????360°????
????????????????????
????????????????“??”
??:??????????????
?????:??&????????????
???????????10????????
???????????????????????
????????????:????????????
?????????????15?????
???????4???????????????
?????????????????7???
????3???????7.2%
??:????????????11?45?
?????????FOX???????????
???COS??????????:?????
?????:??&????????????
??????????172?4.9???36.7?
??2???????0.8%??????
????????????16??????
??2?????????:?????????