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

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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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