??1????????????????20???? (?? ??????????)???,?????????????????????????????20???????????????????,????,??????????????

??,????????????????????????5600???,????????????????39.2?????,?5.9%?

??????,??,???????????????????????,?????6?????12????????????????????????????68???,???????,????????????24????????????????????32???????,???????????

???,??,????AIS(?????????????????????????)????????????VHF(???????????????????)???????????????????,??????????????,????????????????

??????,???“??”,???????????????????????,???(??) ?????????????????????????:????????????????????????

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