xԺУ
һ kW(xu)Ҏ(gu)
ֹĿǰֹ]κһI(y)ęC(j)(gu)ԺУM(jn)^ҽؔ(ci)(jng)ȫ(ni)uxˡȫ28ʾԸԺУȫʾԸԺȫǸɸԺ@һԺУkW(xu)(sh)(qing)kW(xu)ɫrкܴһ֞ИI(y)ԺУ͘I(y)ʸߣ͘I(y)Ӵθc(din)P(gun)עұߵȌƌW(xu)УI(y)g(sh)W(xu)ԺI(y)W(xu)ĴͨI(y)g(sh)W(xu)ԺI(y)W(xu)ԺƽɽI(y)I(y)W(xu)ԺF·I(y)g(sh)W(xu)ԺV|I(y)g(sh)W(xu)Ժȡ
xԡxxʡ ̧^ČW(xu)У
@һԺУȶǹkԺУҴ(sh)ǹkԺУ(dng)б^ɫһvʷeă(yu)|(zh)УϹI(y)I(y)g(sh)W(xu)Ժt(y)W(xu)ߵȌƌW(xu)УFI(y)g(sh)W(xu)Ժ|ͨߵȌƌW(xu)У㽭I(y)W(xu)Ժ
xИI(y)ԺУ
x=xI(y)xI(y)=x͘I(y)ИI(y)ԺУLڵkW(xu)^зeS}P(gun)ϵP(gun)I(y)g(sh)ԏ(qing)Ҫ(bio)(zhn)_O(sh)P(gun)I(y)ԺУԿxԺУеƌI(y)͘I(y)Ҳ