The outer city wall was built in 1680 to protect the urban area outside the inner city wall, which also had eight gates.
外城墙建于1680年，以保护城市地区以外的内城墙，这也有个大门。
The roads and urban rings expand from the inner core and form the physical structure of the area described as one center and four urban rings.
每条街道和城市建筑从核心向外做环行延升，最终将形成一个核心四个城市环状的物理建筑风格。
There are four problems in urban inner spacial structure in Wuhan. First, the land-using structure in building area in not rational.
武汉市城市内部空间结构存在的问题主要有四个方面：第一是建成区用地结构不合理；
There are four problems in urban inner spacial structure in Wuhan. First, the land-using structure in building area in not rational.
武汉市城市内部空间结构存在的问题主要有四个方面：第一是建成区用地结构不合理；
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