F(xin)ڵλã(y) > Ϣ > Ԕ(x)(ni)
偠tʲôҪÓ
NOxǿ՚ȾҲTl(f)⻯W(xu)FҪԭ֮һNOxM(jn)wβ֧Κ[(du)wa(chn)Ӱ푡˜pٹI(y)^(gu)еNOxʮбҪÓpNOxŷżg(sh)һN
I(yng)a(chn)ƷУÓˮ؇UҺwUˮٟtpw併؇C(j)ÓS(chng)Ʒr(ji)(bo)r(ji)