The concept of management-and-control city design is brought up in order to build the new thought and method of city design oriented to management with control and guidance as the ma jor means.

“管控型”城市设计就是要建立面向管理的、以控制和引导为主要手段的城市设计新思维、新方法。

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This paper puts forward a new design method, i. e. Each ma jor structural size of the trays is determined directly from the formulas of performance curve in the capacity graph.

提出由负荷性能图中各性能曲线计算式确定塔板主要结构尺寸。

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