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

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

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

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

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

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

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