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

??“??????????????”????????,????,??,??????????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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