更改

将流网络建模成马尔科夫链不仅仅可以讨论流量、时间等问题，还可以讨论如电导经过某点中转的平均首达时间等问题。<ref>{{cite journal | last = Hilfer| first =  R.| last1= Blumen| first=A.| date = 1988| title = Probabilistic interpretation of the Einstein relation| journal = Physical Review A| volume = 37| pages =578-581}}</ref>

将流网络建模成马尔科夫链不仅仅可以讨论流量、时间等问题，还可以讨论如电导经过某点中转的平均首达时间等问题。<ref>{{cite journal | last = Hilfer| first =  R.| last1= Blumen| first=A.| date = 1988| title = Probabilistic interpretation of the Einstein relation| journal = Physical Review A| volume = 37| pages =578-581}}</ref>

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