*Vertices 3
1 "天然气工业" 0.0 0.0 0.0 x_fact 1.529637 y_fact 32.600382
2 "煤气与热力" 0.0 0.0 0.0 x_fact 4.493308 y_fact 47.514340
3 "暖通空调" 0.0 0.0 0.0 x_fact 0.669216 y_fact 19.885277
*Matrix 
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