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

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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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