$$\mathrm{米gydF4y2Ba}\mathrm{PgydF4y2Ba}\mathrm{GgydF4y2Ba}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}\mathrm{WgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{我gydF4y2Ba}\mathrm{ggydF4y2Ba}\mathrm{hgydF4y2Ba}\mathrm{tgydF4y2Ba}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}\mathrm{一个gydF4y2Ba}\mathrm{cgydF4y2Ba}\mathrm{cgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{lgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{rgydF4y2Ba}\mathrm{一个gydF4y2Ba}\mathrm{tgydF4y2Ba}\mathrm{我gydF4y2Ba}\mathrm{ogydF4y2Ba}\mathrm{ngydF4y2Ba}$$

$$\mathrm{米gydF4y2Ba}\mathrm{PgydF4y2Ba}\mathrm{GgydF4y2Ba}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}\mathrm{WgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{我gydF4y2Ba}\mathrm{ggydF4y2Ba}\mathrm{hgydF4y2Ba}\mathrm{tgydF4y2Ba}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}\mathrm{一个gydF4y2Ba}\mathrm{cgydF4y2Ba}\mathrm{cgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{lgydF4y2Ba}\mathrm{egydF4y2Ba}\mathrm{rgydF4y2Ba}\mathrm{一个gydF4y2Ba}\mathrm{tgydF4y2Ba}\mathrm{我gydF4y2Ba}\mathrm{ogydF4y2Ba}\mathrm{ngydF4y2Ba}$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{3.gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}\mathrm{xgydF4y2Ba}{\mathrm{我gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{3.gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{4gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{5gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{6gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{7gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{3.gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{4gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{3.gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{4gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{5gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{6gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{3.gydF4y2Ba}}+gydF4y2Ba{\mathrm{\epsilon .gydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{00gydF4y2Ba}}+gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}，gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}\sim gydF4y2Ba\mathrm{NgydF4y2Ba}（gydF4y2Ba\mathrm{0gydF4y2Ba}，gydF4y2Ba{\mathrm{\sigma .gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}^{\mathrm{2gydF4y2Ba}}）gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{00gydF4y2Ba}}+gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}，gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}\sim gydF4y2Ba\mathrm{NgydF4y2Ba}（gydF4y2Ba\mathrm{0gydF4y2Ba}，gydF4y2Ba{\mathrm{\sigma .gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}^{\mathrm{2gydF4y2Ba}}）gydF4y2Ba$$

$${\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}\mathrm{米gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{00gydF4y2Ba}}+gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}$$

$${\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}\mathrm{米gydF4y2Ba}}＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{10gydF4y2Ba}}+gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}\mathrm{米gydF4y2Ba}}$$

$$［gydF4y2Ba\begin{array}{c}{\mathrm{bgydF4y2Ba}}_{\mathrm{0gydF4y2Ba}\mathrm{米gydF4y2Ba}}\\ {\mathrm{bgydF4y2Ba}}_{\mathrm{1gydF4y2Ba}\mathrm{米gydF4y2Ba}}\end{array}］gydF4y2Ba\sim gydF4y2Ba\mathrm{NgydF4y2Ba}｛gydF4y2Ba\mathrm{0gydF4y2Ba}，gydF4y2Ba{\mathrm{\sigma .gydF4y2Ba}}^{\mathrm{2gydF4y2Ba}}\mathrm{DgydF4y2Ba}（gydF4y2Ba\mathrm{\theta .gydF4y2Ba}）gydF4y2Ba｝gydF4y2Ba$$

$$\mathrm{日志gydF4y2Ba}（gydF4y2Ba{\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}）gydF4y2Ba＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{1gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{2gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{2gydF4y2Ba}}，gydF4y2Ba$$

$$\mathrm{日志gydF4y2Ba}（gydF4y2Ba{\mathrm{ygydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}）gydF4y2Ba＝gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{0gydF4y2Ba}}+gydF4y2Ba{\mathrm{\beta gydF4y2Ba}}_{\mathrm{1gydF4y2Ba}}{\mathrm{xgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}\mathrm{米gydF4y2Ba}}+gydF4y2Ba{\mathrm{bgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}，gydF4y2Ba$$

$${\mathrm{bgydF4y2Ba}}_{\mathrm{我gydF4y2Ba}}\sim gydF4y2Ba\mathrm{NgydF4y2Ba}（gydF4y2Ba\mathrm{0gydF4y2Ba}，gydF4y2Ba{\mathrm{\sigma .gydF4y2Ba}}_{\mathrm{bgydF4y2Ba}}^{\mathrm{2gydF4y2Ba}}）gydF4y2Ba$$