其次，根据微粒数分布离散性的特征，建立了微粒粒度分布函数的反演矩阵及其实验方法。
Secondly, the inversion matrix equation of the particle size distribution is obtained from the discrete characteristics of the particle distribution in both mathematical theories and experiments.
试验结果表明，在给定的条件下，利用LKY-1型微粒测定仪对粉末粒度测定的重复性好，尤其适用于测定微细粉末的粒度分布；
The results shown that under given condition the model LKY-1 eriometer has good repeatability of the granulometry, especially suitable for measuring the distribution of fine particles.
结合图象信号处理技术，可从计算的分形维值中获取粒度信息，进而可得到一种超细微粒粒度测试的方法。
Combining image signal processing technique, particle size information can be obtained by computing fractal dimension values, and then a new method for particle sizing will be developed in future.
目的进一步研究在事故状态下，氧化钚放射性微粒的扩散特征和粒度特征及其吸入危险性。
Objective in the accident conditions, the radioactive particle size and diffusion characteristics and its inhalation risk of plutonium dioxide were further investigated.
采用自悬浮定向流法制备金属铜纳米微粒，并用TEM,XRD和AES等分析手段研究了铜纳米微粒的形貌、粒度、结构及其表面氧化层特性。
Nanocopper particles were prepared by flow levitation method. The structures, morphologies, granularities and the surface oxide layers of particles were investigated by TEM, XRD, and AES techniques.
采用自悬浮定向流法制备金属铜纳米微粒，并用TEM,XRD和AES等分析手段研究了铜纳米微粒的形貌、粒度、结构及其表面氧化层特性。
Nanocopper particles were prepared by flow levitation method. The structures, morphologies, granularities and the surface oxide layers of particles were investigated by TEM, XRD, and AES techniques.
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