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?“????????”??,????,??,???2????5????????,???????

???(?????/?????-??)??,???????????????????,????????????????????????????????????????,??282.77???????,??????????????10Mpa?

??81.52???,?,?????????24.1????????????????????????????,????48.7%(??12?),??????????47.9%(??11.8??),???????????29.1%(?????????????????7.2????),??20%;????8??,???????????????????30%,????10???

???????,????????????????,????220??,?????70%,??????2027?????????????,??,???(???? ????? ???? ??)

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