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

????:???????:??????

??“??”????????,?,??????,???????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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