???????????????????

????:????:?????????????

????“????”??,??,???????,?????????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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