As the "flexible" space, such green areas are of vital functions in urban calamity prevention, reduction, and post-calamity reconstruction.

防灾绿地作为“柔性”空间，在城市防灾、避灾、减灾及灾后重建过程中具有无可替代的作用。

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The research on comparing the performance parameters of flexible disc and rigid disc is of great significance for the reconstruction and design of safety valve disc.

通过柔性阀瓣与刚性阀瓣各项性能参数的对比研究，对安全阀阀瓣的改造和设计具有重要的意义。

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Refitting and reconstruction are the different attitude to the existing space of old architecture. It can be flexible applied for different project.

无论修复还是改造再利用，都是对老建筑现存空间的不同态度，这是建筑学在具体工程中灵活应用的问题。

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