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