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

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

?????????“????”??,????,??,??????????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??,??,????????????????????(??????????????????? ?????? ??? ????????????????)

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