*Vertices 4
1 "硬质合金" 0.0 0.0 0.0 x_fact 3.974359 y_fact 8.589744
2 "粉末冶金技术" 0.0 0.0 0.0 x_fact 1.666667 y_fact 5.256410
3 "稀有金属材料与工程" 0.0 0.0 0.0 x_fact 2.435897 y_fact 77.179487
4 "工具技术" 0.0 0.0 0.0 x_fact 1.153846 y_fact 8.974359
*Matrix 
0.000000 0.515842 0.360028 0.272474 
0.515842 0.000000 0.225470 0.000000 
0.360028 0.225470 0.000000 0.000000 
0.272474 0.000000 0.000000 0.000000