????:1???????:??????

2?????

3???????

4????????

5???????app???

?“??”??,???,??,???????????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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