???????2V2?????????????
10??10?????磬?????????????????????н?????“2V2?????????”???????????λ??м??????????????????????
1??????10??????????3??(??????????????????)??
2??2?/4?/6???????????????????????1000??????????
3???μ??????????????????“2V2??????????”?????????
4???????????μ?“2V2??????????????”??????????????????????????????μ?“2V2?????????”.
PS??????????????????????????????????????????????????????????
???????
???????
