????: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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