βNϵ
β۱ϩϵ
β۱ϩ(yng)I(lng)
β̿ϵ
βˮˎϵ
βˮVϵ
β ˮϵ
xӾ۱ϩˮȺ飺
xӾ۱ϩһg(sh)ָ˾ˮxӾ۱ϩ(j)ˮȄĂҎ(gu)
1.ˮxӾ۱ϩˮ23%-27%
2.ˮxӾ۱ϩˮ17%-19%
3.ˮxӾ۱ϩˮ12%-15%;
4.ˮxӾ۱ϩˮ37%ҡ
βiSˮ̎
βӡˢSbU̎
βϴúˮ̎F(xin)
βˮ̎
βUˮ̎N
βN
βҺxӾ۱ϩa(chn)ƷB
βÓ̈́
֮Դˮ̎˾
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