??
??????????????????????1???????????????????????????????29? (????????????????? ??????????)????????1???????29??,??????????????????,???????????????
??????????,?,??????,????
???????????????????,???????????60???????4?????????,??3??
???????,???21?????,????????????????
???????23?????????????,?????
?2009???????,????????DHC-8??????????????????,??????45?????????????????????????????2?????2??,???????????????1???(??) ????:?????
?????????
???????????????????????????????????