7.7 m二级踏步、发动机后置的城市客车的LNG系统布置困难，维修空间狭窄。文章拓展思路，为该系列车型的LNG系统布置系列化、通用化、模块化提供参考。%To a 7.7 m two steps rear-mounted engine city bus, the LNG system layout is difficult, and the mainte-nance space is narrow. The author expands thinkings and provides the references to the LNG system layout serializa-tion, generalization and modularity for this series' buses.
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