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

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

?????????????????????(7?????????????????2???),?ARJ21??????????????????????????,?????????????????????

?9????????????????30??,?????“???”??????ARJ21??????????,??1?,????,???

??????,?2438??????3258.4?????????????,????,???????,?????????,??,?????????1?????????????????????????,????????

ARJ21???????,??7897?????,???22253700??????????????????????

(?????????? ?? ??????) ?????????????????????????????????:?????????