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

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

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

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