The granularity distribution and average diameter of particles of red phosphorus smoke were tested and the integral curve of typical sample were given.
测试了红磷烟幕的粒度分布及平均直径，给出了典型样品的累积曲线。
The average diameter / size of particles supplied as a powder coating, following the grinding process.
研磨的粉末涂料的粒子的平均粒径。
The increase of rainfall intensity is mainly due to appear larger particles, the average diameter increases and cause;
雨强的增大主要是由于出现较大粒子，平均直径增大而引起的；
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