| 1. | They have different emphasize particularly . the most difficult work is microcosmic simulation of traffic flow , and knowledges which came down to are very abroad . although that , it has very large practical meaning
对于交通流仿真而言微观仿真尤其难以实现，其中涉及到的知识相当广泛，但是它的现实意义却是相当的大。 |
