为了使纳米陶瓷具有优良的性能，必须要有高纯度、化学组成均匀、颗粒大小能满足要求且粒度分布较窄的纳米陶瓷粉体作为原料。
In order to possess these excellent characters, nano-ceramic particles must satisfy high purity, well-distributed chemical component, proper granule size and narrower distribution.
粉煤灰的颗粒组成、粒度分布是影响高掺量粉煤灰烧结空心制品坯料成型工艺的重要参数。
Fly ash grain composition, particle size distribution are the important process parameters that effect the molding of body stock of high content fly ash sintered porous product.
一层组成的颗粒粒度组成的字符和符号传播，对外部表面的上缘，用来作为识别标记。
A layer composed of the particle-size composition of characters and symbols is spread on the external surface of the upper margin, used as identified markers.
应用DTA热分析仪、颗粒度分析仪和X光衍射仪研究分析了粉末的热分解特性、颗粒大小和分布以及相组成。
Phase ratio, particle size and thermal analytical character of the powder have been studied by DTA, particle size analyzer and X-ray diffraction.
性能：呈浅棕褐色，韧性高，颗粒形状好，粒度组成均匀。
Property: it % is light brown and features high toughness and well-shaped grains, regular and even grit sizes.
性能：呈浅棕褐色，韧性高，颗粒形状好，粒度组成均匀。
Property: it % is light brown and features high toughness and well-shaped grains, regular and even grit sizes.
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