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

2???????

3???????

4???????????

5??????????

?????6??????????????????????11???? (?? ????????????????????)???????????????????????11????,????SL1000?,???

????,??“??”,?????

??,????(????????????????????)?????????????????,?840??????????????,??100+?????????????????

???????????????????,??????????????????????????,??????????,??

?????????????????????????:“??SL400???????100mK(-273.05?)????400????????????,????????????????SL1000??1000?????,????1.5???3???????????????????????????”

????????????????,??????SL1000???????????????,???????????????,?????????????“??????”??????“??”?(??????) ???????:?????????????