F(xin)ڵλã(y) > ̘I(y)(j) > Ԕ(x)(ni)
ɽ˾ѭh(hun)偠tÓ̸-ӱ˼Pܭh(hun)(zhun)עh(hun)Ó칤
һ(y): ʯf늏S(chng)ÓÓ칤-ӱ˼Pܭh(hun)Ƽ˾ⳬŷŹ̰
һ(y): ӱɽúS(chng)Ó칤̰-ӱ˼P܌(zhun)I(y)S(chng)
I(yng)a(chn)ƷУÓˮ؇UҺwUˮٟtpw併؇C(j)ÓS(chng)Ʒr(ji)(bo)r(ji)