?? ????“??????????”
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????:1???????150??:???????
2?????????
3????????
4??????????
5????????
??????????????????????????2?????????????13????? (??????? ?????????????????????????)???,???????,???????????????,???????????????????,????????????????????????
?????????????????????????????????????13????????????????????????
??1967???????,????????????“??????”?????????????????????????,????,??,??????????
??,???????????????????????,???????
?????,?????????????????????????50GPa???,???????????“????”??,????,??????????
??,????????????,???????????????????
?????????????,?????,?????????????155±9GPa,??????????????????40%??????,??????????1100?,??????????????900??
???????????????,???????????1.2????,????????????,???,???????????????,????????????????????(??) ???????????????:??