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- By controlling the worktable to rotate in x-y plane, the superposition between the rotary surface of the grinding wheel and the normal vector of the curve was realized. 该方法是在传统的曲线磨床的基础上，增加一个可以使工件相对于砂轮偏转的数控回转轴，实现砂轮对工件轮廓的法向跟踪磨削。
- First, the normal vector of the surface was calculated using the differential geometry based on the features of an involute and a cycloid as a reference of radius of the ball milling cutter. 由于铣刀每完成一个行程后，还要进行轮廓插补，采用一种新的渐开线轮廓插补方法，并将插补轨迹换算成球头铣刀的刀心轨迹。
- A Method to Calculate the Normal Vector of a Closed-Curve Surface 一种计算空间封闭曲面正侧法向量的方法
- Computation of Surface Normal Vector in Virtual Endoscope System 虚拟内窥镜系统中表面法向量的计算
- Secondly, introduce the angle information formed by the normal vectors of adjacent area so as to distinguish polyhedral box shaped parts, revolving parts and free-form surfaces. 引入点所在邻域法向量的夹角信息，进一步区分多面体盒形件、回转类零件或自由曲面信息。
- Each tuple is a vector of members. 每个元组是一个成员向量。
- Vertex format includes a vertex normal vector. 顶点格式包括顶点法线向量。
- Returns the normal vector to the ground. 返回地面的标准矢量。
- The normal vector may not be a null vector. 法向量不能是空向量。
- Spray primer to see the condition of surface. 喷水补土检查表面状况。
- The radius vector of each solid is always a positive length. 每个立体的矢径总是正值长度。
- Complexity Analysis of Surface EMG Signals. 表面肌电信号的复杂度特征研究。
- normal vector of a surface 曲面的法线矢量
- The Role of Surface Albedo Feedback in Climate. 气候中地表反照率反馈影响。
- Temperature dependence of surface tension. 表面张力温度依赖性。
- Also ow coefficient of surface friction. 较小的表面摩擦系数。
- The Tat signal peptide detecting vector of PGA were constructed. 构建了Tat信号肽检测载体。
- Each face in a mesh has a perpendicular normal vector. 纹理中每个面都有一个垂直的法向量。
- The reasons of surface mining damage were analyzed. 摘要分析采矿活动对地表损坏的原因。
- Drying of surface coating on picture tube. 显象管表面涂层的干燥；
