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

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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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