?? ????“???????????”????
![](https://image.chezhanri.com/2019/0222/20190222150829526.jpg)
????:1???????:?????????,??
2????????????
3??????????????
4????????????
5????51??
???????????????6?????????????????16????????? (??????????????????????? ????)????????????16??????????????????????,??????,??????????????????????6mK(???????????????????????-273.144?),?????????????????
???????,????????????,?????????????????????????????????????????,??????????????“??”(??273.15?)??,????????????????????????????????,??????????
??????????????????????????,????,????????????1mK,?????????????????6mK-200mK????????????????,?????,??????????????????????????????,?????20mK???????????????????,??,????,?????????????,?????????????????????????????????
??,??????????,??????????????,????????????????????(??) ?????:??????