Analyze of micrograph and particle diameter distribution present that particle diameter of high-calcium fly ash distributes unequally.
显微图象及粉体颗粒粒径分布分析显示，高钙灰的颗粒分布呈不均质性；
The microspheres have narrow distribution of diameter, excellent mechanical stability and acid-resistivity.
微球粒径分布窄，具有良好的机械稳定性和耐酸性。
Duct branch is rich in natural form of uniform distribution, wall smooth, branch pipe and tube diameter on the transition to a flat.
导管分支丰富，形态自然，分布均匀，管壁光滑，分支导管与上一级导管管径过渡平缓。
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