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

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

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

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