High efficiency of mixing under micro scale is significant. And how to achieve high efficiency of mixing is one of important research subjects.
因此在微尺度下的高效混合具有十分重要的意义，如何得到高效混合是目前重要研究课题之一。
Discusses correlations between ventilation effectiveness and air distribution, analyses why the ventilation efficiency of mixing ventilation is lower than that of displacement ventilation.
讨论了通风有效性与空气分布特性的相关性，分析了混合通风（上送下回）通风效率低于置换通风效率的原因。
It can be seen from the experiments to finish plates of stainless steel and other steels that the particle diameter and mixing percentage of iron particles have a bearing on the finishing efficiency.
由不锈钢等平板的研磨实验中以看到：混入的铁粒子的粒径及其混合比例对加工效率影响很大。
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