upper tangent arc 上正切晕弧
arc tangent [数] 反正切 ; 横竖切 ; 圆弧的切线方向
u er tangent arc 上正切晕弧
Tangent Arc Intent Zones 切线弧的目标区域
arc-tangent function 反正切函数
tangent arc motion 切向弧线位移
upper r tangent arc 上正切晕弧
At any knots, the nearly arc length are precise for the resulting nearly arc length parametric curve, and it has the unit tangent same as that of the real arc length parametric curve.
所作近似弧长参数化曲线在插值节点处，近似弧长是精确的，并且具有与精确弧长参数曲线同方向的单位切矢。
The locus of space tangent point and the arc segment of deck at side are obtained based on the above conditions.
在此基础上，求出首圆弧空间切点线和甲板边线的修正段。
Compared with modified arc tangent function model, it is more reasonable for predicting the slope of the characteristic of the core at deep saturation.
相对于修正反正切函数模型，能更为合理地预测铁芯深度饱和后的特性。
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