二氧化硅SiO2

氧化钾K2O

氧化铅PbO

efflo 1

0.000

type 1

−9.332***

efflo 1

0.000

(.)

(−10.971)

(.)

efflo 2

−18.314***

type 2

0.000

efflo 2

12.772***

(−3.775)

(.)

(3.284)

type 1

−13.857**

cela 1

7.597***

type 1

26.019***

(−2.254)

(6.654)

(5.279)

type 2

0.000

cela 2

0.000

type 2

0.000

(.)

(.)

(.)

cela 1

−38.879***

cela 3

7.971***

cela 2

0.000

(-4.712)

(7.099)

(.)

cela 2

0.000

_cons

1.361

cela 3

23.764***

(.)

(0.659)

(3.653)

cela 3

−56.483***

N

69

_cons

−16.863

(−6.960)

(−1.409)

_cons

119.350***

N

69

(7.992)

N

69