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一、引言随着天津城市发展空间的拓展,正在逐渐形成“两轴、三带、六板块”的城市空间结构以及以“城市中心—新城—中心镇—一般建制镇”为主线的城镇体系。按照正在编制的《天津市轨道交通线网
I. INTRODUCTION With the expansion of urban development space in Tianjin, the urban spatial structure of “two axes, three belts and six plates” is being gradually formed and the main line of “urban center - new town - central town - general town” Town system. In accordance with the preparation of "Tianjin Rail Transit Network