?60?? ???????????????“?????”?????
???????????1?????????????29???,?,??????????(American Airlines)?????????AA5342?,??????????Bombardier CRJ700???,?????????60???
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29?????????,??(DCFD)???,??????????????,????????????????????????
????,????????????????PSA??????????????,????????????????????H-60(?“???”???)??????????????(???????????? ??) ??????????????:???????
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