????:1???????:????

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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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