?????60?? ???????????????“?”?????

?????????????1???29????,?????????,???????????????????????(American Airlines)??????AA5342?,???????????????????????Bombardier CRJ700???,?????????????60??

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29???,????(DCFD)??,??????????,?????????????

??????????,???????????PSA??????,??H-60(?????????????“??”???????)?????????????????(????????? ?????????????) ??????????:?????????