????:1?????????:????????

2??????????

3???????

4?????

5?????????

??“??”??,??????,?????????????????,??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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