互相垂直且有公共原点的两条数轴构成平面直角坐标系，而如果坐标系中两条坐标轴不垂直，那么这样的坐标系称为“斜坐标系”。
An oblique coordinate system is used to formulate the film thickness equation, the velocity equation, Reynolds equation of perturbance pressure for spiral oil wedge hydrodynamic bearing.
推导了斜坐标系下螺旋槽流体动静压滑动轴承的油膜厚度方程、速度方程和扰动压力的雷诺方程。
参考来源 - 螺旋槽流体动静压滑动轴承分流特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
推导出斜坐标系下，亥姆霍兹方程的五点差分格式；
The five-grid difference format of Helmholtz equation in slanting coordinate have been derived.
齿轮啮合是转子之间常见的一种耦合形式，根据耦合单元的概念，推导了在全局坐标系下斜齿轮啮合的传递矩阵。
Since the gear engagement is a common coupling form between rotors, the transfer matrix of skew gear engagement in global coordinate system is deduced based on the concept of coupling element.
斜椭圆弧在原坐标系中的每个象限的轨迹并不是单调函数，因此不能按各个象限进行插补。
The diagonal ellipse arc in each quadrant of primary reference frame is not a monotonic function, so it is impossible to implement interpolation according to each quadrant.
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