The paper introduces a new method for measuring the radial intensity distribution and the diameter of the Gaussian beam.
本文提出了一种测量高斯激光束径向强度分布及束径的新方法。
The population diameter structure can well be described by using nonparametric kernel method based on the sample data without assuming the population diameter distribution.
应用非参数核密度估计方法，可以由样本直径结构很好地描述总体直径结构，而无需假定总体的直径分布。
The results showed that the image analysis method can obtain the average value and distribution curve of ratio of length to diameter for vilnite powder with needle shape.
研究表明图像分析方法可以直接给出硅灰石针状粉末的平均长径比及不同长径比的分布情况。
Objective: To establish a method convenient for determining the diameter of colloidal gold particle and its distribution through visible spectroscopy.
目的：利用可见光光谱法，建立便于实验室使用的评价胶体金粒径及分布的方法。
The method has a simple operation and the low cost raw materials, the prepared iron oxide nanometer particles have the even diameter distribution with a certain magnetism.
该方法操作简便，所用的原材料价格低廉，且制得的氧化铁纳米粒子具有均一的粒 径分布并有一定的磁性。
The results show that this method has a unique advantage in the pipe network, which enables the flow distribution and the diameter options in pipe network simultaneously.
结果表明，遗传算法在水力计算中有着独特的优势，它能使管网的流量分配和管径选择同时完成。
The stress relief method of hole diameter deformation was used to measure the stress distribution of the pillar structure in the mined area in a big phosphate mine.
采用孔径变形应力解除法，测量了某大型磷矿采空区中矿柱结构的应力分布规律；
A new reflection method to measure the external diameter and the thickness distribution of the quartz tube is described in this paper.
本文介绍了反射法测量石英管外径及壁厚的原理和方法。
The aluminum nanometer powder prepared by the method has high purity, the particle diameter is smaller and the distribution is even.
本发明方法所制备的铝纳米粉末纯度高、粒径较小且分布均匀。
The aluminum nanometer powder prepared by the method has high purity, the particle diameter is smaller and the distribution is even.
本发明方法所制备的铝纳米粉末纯度高、粒径较小且分布均匀。
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