扩散是微小颗粒或离子分散或者从高浓度区域向低浓度区域传递的过程。
Diffusion is the process by which molecules or ions scatter or spread from regions where they are in higher concentrations toward regions where they are in lower concentrations.
并根据这一方法，对国外有关的高温高浓度区域的比焓值数据进行了转换，可为三效和四效溴化锂吸收式制冷机的开发和研制提供比焓值数据。
The enthalpy data in international literature with high temperature and high concentration is converted, which can be used for developing triple-effect and quadruple-effect absorption chiller.
同时，优化污染源的位置也可以达到减少建筑群内污染物高浓度的影响区域。
On the other hand, the affected area of high concentration can also be decreased by optimizing the position of polluting sources.
干旱与半干旱区域的广大面积含有对农作物足以造成不利关系的高浓度溶性盐。
Extensive areas of the arid and semiarid regions have soils containing concentrations of soluble salts sufficient to adversely affect plant growth.
通过优化建筑物的分布位置，可以有效地减少污染源在小区内高浓度分布区域。
By arranging the position of buildings, the area of high pollutant concentration can be reduced efficiently.
通过优化建筑物的分布位置，可以有效地减少污染源在小区内高浓度分布区域。
By arranging the position of buildings, the area of high pollutant concentration can be reduced efficiently.
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