This paper presents a method of measuring the particle mean size and dust concentration by small angle near forward light scattering optics and the extinction theory.
本文综合前向小角光散理论及消光原理，提出一种测量粉尘平均粒径及粉尘浓度的光学方法。
It can reduce the porosity and mean particle size of pelletizing, increase the compact level of pelletizing, improve the intension of dry bulb.
能降低球团的气孔率和平均粒度，增加球团的致密程度，提高干球的强度。
Experiments of dense-phase pneumatic conveying for pulverized coal with different mean particle size were carried out on the test rig of high pressure dense-phase pneumatic conveying.
在高压密相气力输送试验台上，进行了不同平均粒径煤粉的密相输送试验。
The concentration and the mean particle size of smoke are of primary importance in early fire detection.
烟雾浓度和平均粒径是烟雾的两个重要特性参数，是早期火灾探测的基础。
The energy accumulator capacity and wire feeding velocity can be adjusted to realize adjustment of mean particle size of the fabricated nanometer metal powder within a certain range.
本实用新型的优点是通过调整储能器容量和进丝速度，在一定范围内实现金属纳米粉体平均粒径可调整。
Results show the particle size of gradient layers should be less than the mean flow pore size of substrate materials so as to obtain the optimum filtration performance.
结果表明，为获得复合材料的最佳过滤性能，梯度层的粉末粒度必须小于基体的中流量平均孔径。
Results show the particle size of gradient layers should be less than the mean flow pore size of substrate materials so as to obtain the optimum filtration performance.
结果表明，为获得复合材料的最佳过滤性能，梯度层的粉末粒度必须小于基体的中流量平均孔径。
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