This paper derives the mathematical express on of the pressure of vacuum arc subjected to an axial magnetic field under stationary model and the assumption of local thermodynamic equilibrium etc.
本文在稳态模型和局域热力学平衡等假设下，推导了在纵向磁场下真空电弧压力的数学表达式。
Also the curves can express the circle arc and ellipse arc and can construct rotate surfaces.
同时它还能精确表示圆弧、椭圆弧等二次曲线，推广到空间即可以表示旋转曲面。
Based on thermodynamics and considerations of the influence of arc, the equations to express the behaviour of gas flow with the arc is solved by numerical method.
根据热力学理沦并考虑到电弧的作用，运用数值运算方法对灭弧室气流的解析方程进行了计算。
Then selecting parameters again, we can express the alignment's line, arc, transition curves through the variations of parameters.
方案选定后，重新确定样条函数的参数值，通过参数值的变化，准确表达线形中的直线段、圆弧段、缓和曲线段等。
According to defining of the global CAM curve, the resolution express of press Angle about a new type of indexing mechanism with arc surface CAM is provided.
根据空间凸轮曲面压力角的定义推导出新型弧面凸轮分度机构压力角的解析表达式，分析该机构压力角出现最大值的情况，同时对如何降低最大压力角提出了一些改进措施。
According to defining of the global CAM curve, the resolution express of press Angle about a new type of indexing mechanism with arc surface CAM is provided.
根据空间凸轮曲面压力角的定义推导出新型弧面凸轮分度机构压力角的解析表达式，分析该机构压力角出现最大值的情况，同时对如何降低最大压力角提出了一些改进措施。
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