????:1???????:??50?????????

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3??????

4????????

5???????

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