Urban space layout and structure 城镇空间布局结构
LFS data structure, disk layout, free space management, access mechanism and segment cleaning mechanism were summarized.
本文综述了LFS的数据结构和磁盘布局，及空闲空间管理、读写机制、段清洁机制与策略等。
In order to analyze the problems and contradictions of green space system planning in Changchun, I suggest the urban green space system should adopt the layout structure of ring and radial.
剖析绿地系统规划中存在的问题和矛盾，提出城市绿地系统应该采用环网式的布局结构，使城市生态系统达到相对的稳定，使新建绿地与原有绿地能很好地衔接起来。
Finally, according to scientific, dynamic layout Concept (stage planning), the expand amount of space and the land structure were controlled reasonably, in order to completed the layout scheme.
最后，根据科学、动态的规划布局理念（分期规划）合理地控制空间拓展的总量以及用地比量结构，进而完成规划布局方案。
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