以前大部分研究集中于宏观工程参数控制和活性污泥特性对系统运行的作用过程，针对系统内活性污泥的分子生态学研究尚少。
Now the study of MBR focuses on macro parameter control and system running effected by sludge characteristics, and there are little studies on molecule ecology of active sludge.
上述这些宏观性质，可以从原子分子结构，辐射跃迁几率和原子间相互作用势等基本参数求出。
All of the above macroscopic properties can be calculated from the basic informations about the atomic and molecular structures, radiation transition probabilities and interatomic potentials.
研究了多层高分子复合结构在斜入射声波作用下，各层材料动态力学性能参数和几何参数变化对其吸声性能的影响规律。
The aim is to study the effects of dynamic mechanics properties and geometrical parameters of each layer material on the sound absorption properties of the multilayered polymer composites.
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