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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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