*Vertices 3
1 "炼油技术与工程" 0.0 0.0 0.0 x_fact 2.479339 y_fact 43.801653
2 "石油化工设备技术" 0.0 0.0 0.0 x_fact 8.264463 y_fact 17.355372
3 "流体机械" 0.0 0.0 0.0 x_fact 1.652893 y_fact 38.842975
*Matrix 
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0.505441 0.000000 0.332672 
0.000000 0.332672 0.000000