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

2??????????????

3?????????150?

4??????

5???????

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

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

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

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

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

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