切线

The tangent, binormal, and normal attributes represent the coordinate axes of the tangent space surrounding each vertex.

切线，副法线和法线代表了每顶点切线空间轴。

An application programmer must supply a tangent, binormal, and normal at each vertex.

程序员必须提供每顶点切线、副法线和法线。

The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the...

摆线逆运动中与动切线成定角直线,包络也是圆周渐开线.

Objective:To investigate the methods of locate curative position of tangent field in breast cancer isocenter irradiation.

探讨乳腺癌放疗胸壁切线野等中心照射,确定等中心定位方法。

The formula of the curve tangent slope at some peculiar point in the orthograph on the stereoscopic surface intersecting line and the method of making tangent are given as well.

本可展曲面微分不变量,导出可展面曲率线与曲率特征,并以锥面和切线曲面为例阐明这些特性几何意义。