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