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

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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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