??61?

????

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????
  • ‘??? ???’????? ??? ???

    ‘??? ???’????? ??? ???

    ... AI ??? ??? 1???? ????. ???? 97%? ???. ???? 2???? ?? ??? ... ?? ??(2680? ?)? ????(112? ?)? ?? ?? ?? ?? 21%, 4.7% ???. ...

    • 2020-05-22
  • ? ???? ?? ? ??

    ? ???? ?? ? ??

    ... 35.9%)???. ???? ?? ??? ??(20.8%) ... “????? ????? ?? ???? ?? ... ???? ???? ??? ??? ?? ?? ????? 68???? 52???? ...

    • 2018-02-14
  • KTX vs SRT ??? ????, ???? ????

    KTX vs SRT ??? ????, ???? ????

    ... 395.4km, ????? 2?? 13??? ??? ... ??? ???? ??????? ?? ... ???? ‘2017?? ???? ??’? ??? ... ?? ??? 10% ?? ??? ?? ????? ...

    • 2016-12-28