Timed Hybrid Petri Net(THPN),one of the Hybrid Petri Net models, were first put forward by David ,and an efficient way for analyses of THPN properties is the construction of the THPN developing graph.

• 时延混合Petri网(THPN)是由David最早提出的一类混合Petri网模型；而构造时延混合Petri网的演变图是对其性质进行分析的有效方法.