?? ??????????“????”
![](http://n.sinaimg.cn/front/337/w1657h1080/20190420/H_fq-hvvuiyn3350691.jpg)
????:1?400?????:??????????
2????????????
3???????
4????????
5??????????????
?????????????2?13????? (?????????????????????????? ?????)???????????????????????,?,?????????????????????????,?????,???????????????????
???????????????????????????????????????????13???
???????????????????????1967??????????,????????“?????????”???,????,????????????????????????,???
??,???????????????????????????,????
????????????,???????????????50GPa?????????,??“???????????”???????????????,???,?????????????
????????????,??,???????
????,??????????????????,?????????????155±9GPa,????????40%???????,???????????1100?,??900??
??,????????????????????1.2????????????????????,?????????????????????????,???????????????,??????,???????????????(??????????????) ?????:????????