Analysis of the particle velocity distribution and the gas-solid hydrodynamics indicate that the scale of inner particle circulation is crucial in determining the mixing pattern within the beds.
颗粒速度分布和气固流动特性分析显示，内部颗粒循环尺度是影响床内混合方式的重要因素。
A decision analysis pattern and a criterion on suitable scale are posed. At last, a research, case is given.
提出了一个决策分析模式和一个适度规模的判别准则，并给出了一个案例。
Firstly, papers research and analysis the existing problems of China's urban living pattern from the living diversity, scale level, organization and management and planning and design study.
论文首先从居住分异、规模层次、组织管理和规划设计等几个方面研究分析了我国城市居住模式的现存问题。
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