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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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