*Vertices 3
1 "硬质合金" 0.0 0.0 0.0 x_fact 4.577465 y_fact 19.014085
2 "粉末冶金技术" 0.0 0.0 0.0 x_fact 4.225352 y_fact 11.267606
3 "硅酸盐学报" 0.0 0.0 0.0 x_fact 1.408451 y_fact 69.718310
*Matrix 
0.000000 0.462217 0.000000 
0.462217 0.000000 0.295091 
0.000000 0.295091 0.000000