????:1???????????:??????????

2??????98??

3???????????

4?????????150?

5?????95

??????,??«???????»??????????????????????,????????????????????,??????????????????????????????98%???????????“?”,??????????????????-196°C???“??”,????5000???(Gy)?????????????????????“????”, ??????????????????,?????????????????“??????????????????????

2021??,????,????,?????????????????????,??“?????”???

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

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