这是约定的得到单位法向量的方法，这种做法使得，当沿着曲线行进时，法向量始终指向右手方向。
That is our convention to get a unit normal vector that points to the right of the curve as we move along the curve.
我们是知道如何去求水平集的法向量的，也就是垂直于水平集的法向量。
And we know how to find a normal vector to the level set, namely the gradient vector is always perpendicular to the level set.
一个法向量与任意常数相乘，还是法向量。
You can just multiply a normal vector by any constant, you will still get the normal vector.
的法向量似乎是指向外部。，And, the,normal, vector, to,s, seems, to, be, pointing, out wards, everywhere。，如果我们有一个法向量指向外部的封闭曲面，并且我们要求出它的一个通量积分，那么我们可以用一个三重积分来代替这个通量积分。
S if we have a closed surface with a normal vector pointing outwards, and we want to find a flux integral for it, well, we can replace that with a triple integral.
并用算例用基于准梯度向量的准梯度法、准共轭梯度法和变尺度法求解有功优化潮流。
The optimal real power flow is computed on the basis of the quasi-gradient vector by means of gradient method, conjugate gradient method and DPF method.
迭代法中的雅克比迭代法是一种比较常用的方法，它公式简单，每迭代一次只需计算一次矩阵和向量乘法。
Yacobi method belongs to iteration methods, and is widely used. It has simple formula, which needs only time multiplication of matrix and rector for one iteration.
分别使用损伤指标法和损伤定位向量法进行损伤定位。
Furthermore, the damage index method and the damage locating vectors (DLVs) method are utilized respectively to identify the damage locations.
另外，还提出了在模态法和颤振法中基于发散特征向量的结构模态选取原则。
Besides, the principle to select the number of structure modes based on the divergence eigenvector in the mode method and the flutter method is produced.
文本表达是指将表达文献主题内容的词汇抽取出来的过程。常用的向量空间表达法主要采用TF/IDF等权重法。
Text representation approaches with term weighting schemes such as commonly used TF/IDF are widely used to extract indexing terms of documents.
顶点的法向量通常是包含这个顶点的所有三角形法向量的平均值。
The vertex normal is usually calculated as the average between the triangle normals of all triangles that include that vertex.
顶点的法向量通常是包含这个顶点的所有三角形法向量的平均值。
The vertex normal is usually calculated as the average between the triangle normals of all triangles that include that vertex.
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