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

????:??????:????????

?????????????7??6???? (? ???????)6?,??????200????????????????????????????????,??????????????????????

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

???????????,???????A321??????,?,?????????,?5??????????????8????????????????????????,?1200????

???,???????????????????????????????????????,?????????????????5????????6?????????????????????

??,??????,??????8???12????,??,???????20?,?????????2000????(????)

???:???