在球头铣刀几何建模中，考虑铣刀残余高度的影响，推导了不同轴向切深时对应的切入角与切出角范围。
In the geometry modeling of ball end mill cutter, consideration of cusp effect of ball milling, accurate cutting Angle range corresponding to different axial cutting depth are deduced.
从描述电子束运动的基本方程出发，引入一定条件下的近似，获得了一种实用的同轴二极管电流、电压与几何参数关系的近似解析解。
According to the Maxwell equations, an analytic solution related with coaxial diode current, applied voltage and geometry parameters is obtained by introducing certain approximation.
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