同时提出了等效粒径的概念及其计算方法。
Furthermore, the concept of equivalent grain size and the method for calculation is suggested.
说明采用等效粒径能反映泥沙的起动特性。
The results show that the equivalent grain can reflect the characteristics of the sediment incipient motion.
并对不同粒径，在床面不同位置的暴露度、暴露度系数及等效粒径进行了计算。
Calculations of exposure degree, exposure coefficient and equivalent grain size for grains with various size located at different position relative to the riverbed are carried out.
阐述了泥沙起动机理，通过对等效粒径概念及表达式的引入，推得了泥沙起动公式。
The formula for calculating the incipient motion condition of non-uniform sediment has been established by considering the equivalent grain and the relative exposure degree.
针对空气动力学粒径和光学等效粒径之间存在的差异，本文提出对空气动力学粒径进行光学修正的方法。
In order to analyze the difference of optics sizing and aerodynamic sizing of aerosol particle, a method for revising the aerodynamic sizing using optics method is proposed.
针对空气动力学粒径和光学等效粒径之间存在的差异，本文提出对空气动力学粒径进行光学修正的方法。
In order to analyze the difference of optics sizing and aerodynamic sizing of aerosol particle, a method for revising the aerodynamic sizing using optics method is proposed.
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