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

????:?????????:????

?????????“??”?,??,????????????????????????,???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????????,??,????????(????? ?? ???? ??????????????)

???:????