?? ??????????“??????” ??
![](https://image.chezhanri.com/2019/0620/20190620110203425.jpg)
????:1???????:????????
2?????600
3????????????
4?????????????
5???????
?“??????????”
? ???????????
???????????/?? ?????? ???????? ???? ??? ???? ???
?,???????????6??16??????????????????????????????,?,??????????,??????????7?????????????????????????????7????,?????“????????????????”,??“?????????”,????“????????????????????”A?????,???????????
??????????????????????G2518??????????,???????????30?????,?????????????????????????????31???,????????,?,??????????,??????????????????,??????????????“???????????-???????????????-???-????”?????????,???????????????????????24??,?????
?????????????
6????????????????15-16??????????,????????????????????,????????????????????????????80????150??????
6????????????15???,?????????????????????????????????????,???16??????????????,?????,?????????????????????????,???,??????????????,???????,?????????????????,????,????
?????????????????????????,“????????????,???????‘??????’?????????‘????????????????’‘????????’?????????????????????????,??????,???????,???????????????,????????????????????????????????????,??????????,???????????????????,???????????”
???
???,??????????????????????,??????????????,???,??????????“??????????”;????,???????????????6???????????2060MPa????(?)??????????????15?????????????????????????????????,?????????“?”??????????,?????????????????????,?????????????????????,?????????????????????“??????”;????,????????????“?????????????????”,????????“?????????????”;??,?????
“??,??????????????????????????,???????????????,????”??????????????????????
????????,?15?????????(????????????????????)???????????????????,???,???????(?????????) ???????????:????