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

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

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

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