In the process of EDM, dielectric medium has remarkable influence on material removal rate, surface quality of the workpiece and relative electrode wear ratio.
电火花加工中，放电介质对工件的材料去除率、表面质量以及电极相对损耗率有重要影响。
In order to calculate electric field of polarized spherical dielectric medium, a simple physical model was built.
计算均匀极化的电介质球激发的电场，建立一个简单的物理模型。
Week 10 conductor in static electric field, capacitor and capacity of conductor, dielectric in static electric field, Gauss theorem in dielectric medium.
第10周静电场中的导体、电容器和导体的电容；静电场中的电介质、有介质时的高斯定理。
Week 10 conductor in static electric field, capacitor and capacity of conductor, dielectric in static electric field, Gauss theorem in dielectric medium.
第10周静电场中的导体、电容器和导体的电容；静电场中的电介质、有介质时的高斯定理。
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