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

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

???????“??”???,???,?,??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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