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????:1???????????:??24??????
2???????
3?????
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5???????????
?????????2???????????????????13??????????????????????? (???????????? ????)????????????,?????????????????????????,???,????????????????????????,???????????????????
??????????????????????????????????????????13?????
?????1967???????????????,??“?????????????”????????????????,???????????,?,??
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??,????????50GPa???????,??????????????“??????”?????????????????????????,????,???????????????????????????
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??????????????,???????????,???????????????????????155±9GPa,??40%???,??1100?,??????900??
?????,?????????????1.2?????????????,????????,??????,??????????,??????????????(??????????????) ????????:????