(1/2)ҳ
ȡԵ˹ܵؽܣһǵԣ߳ʵңڶɳλʵҴһһεİɫҲһʵҡǰܵʵңʵҲ, ռعģҪǰǸĶࡣ
߽ʵңǷ·ǽ뵽һ߾һҲ˶ŨȤ
ǺĿ⣬ԳЦŽܵ˳һоģҪ˳о
˳һ㶣Ȼɻ
ڹ˳ʵ, , ܶооҲѾкܶdz˳Ѿгȡ˷dzijɼ
˳ҪΪ֣һΪüⲿüҪΪóû˳Լù̼֡
ʵϸ˵Ӧҵⲿֳʺѽн綨˵óҲǣҲֳ
ü˳ĿǰΪҵһ̶ƳһϵԶʻ˳ˣֻ˼ʻҲǼԶʻ
ԶʻL1L4ĿǰȽϳL2ԶʻвٳԳL4ԶʻԲҪ˾Ԥ, Ŀǰķɻû, ԶʻķҲûƶڵľԶʻL2𣬵ȻˣL2ڵL2ԶʻҪǰԶʻȽ̫ˡ
֮ǰǼأֻܴﵽL2ԶʻΪߵԭԶʻļL2ȫͬġ
BƼԶʻѾﵽL4ֻΪⷽԭԽٿطʽѹL2𡣵ԶʻܣѾԽͬL2һЩL4Զʻ
֮ⷽķɷٳٵòƶƣҪΪԶʻ¹ʼܴ¹ʣ߱ʲôĵҲνˡش¹ʣԶʻֹ߳ɵ¹ʣôΡǻӵߣԱأǻ쳧̡
(1/2)ҳ,һҳĶ
ǩĶ