?????????????????

??

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

?,??,?,??????

???????????????,???60???????4???????????,??????3?????????

??,???21???????????????????????????????????????,???

?23??????????????,????

?2009??????????????????,??????????????????????????????????DHC-8???????,???????????????45????????2??2??????????????????,????1???????????????????????(?) ???:??????????????

?????????

???????????????????????????

????????