?? ????“???????????”????
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????:1?????????:??????????
2???????
3???????????
4?????????????
5??????????
?????????6?????????????????16????? (???????????? ?)????????????????16?????????????????,?????,???????????????6mK(??-273.144?),???????????????
??????????,????????????????????????????????,??????????,??????????“?”(??273.15?)??????????????????????????,?????????????????,?????????????????
??,???????,??????????????1mK,??????????????????????????????????6mK-200mK???????,??????????????????????,????????????????,????20mK???????????????????????,??????????????????????????,?????????,???????????????????????,????????????????????
????????????,???????????????????,??,?????????????????(?????????????) ???????????????????????:?????