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