Based on bond graph theory, the transformation procedure of system state space equations is provided, the general and regularized transformation formula is derived. 以键合图理论为基础，给出了系统状态方程的转化方法，推导出了通用的规则化的转化公式，特别适用于在计算机上自动地实现。
The calculating method of CEB was discussed based on signal flow diagram theory, consequently the CEB of different flows in different coal-fired units was obtained. 利用信号流图理论，探讨了外部键系数的计算方法，得到不同容量燃煤机组不同流的外部键系数。
