???mt????????1-15???????λ??????(7)

??????????λ,??e?MT??1??2??λ,?????·?3??λ,С?·????,?????????????

?????3?????MT,??2????MT,1????????

??????2?????????????????С??

???????????????????в??

??????????,????????????,???????????????1??2?????

??????????????????(????????????,????????ū??1,2?????????)

2.????????????

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

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

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

????????Щ????????????????????,????????????????,????????

(??????????????,????????????????,??????????С??????,??ó?????)

3.??????????

?????????λ??????????2??λ,????????