??1?30???? (?????????????????????? ????)???30?????????????,29???????????

?1???????????????????????????29????????,???????64?,??????3????,????????????????“?????????????”?

?????????????????1???30????????????????????,?,???????????,??1??29??????????,??????????????????? ????? ?? ????

??,????“?????????,??????????????”???????,????????????????????,???

??????,?(FAA)?????????????????????????????“??,???????????????,??????????????”

?2009???????????????????????????????????????????2???,??????,?,?49????????????????1??????(???????)

???????:??

??

??:???????????,??????????,??????????????