And that is, in general, not a unit normal vector.
这通常不是一个单位法向量。
Now, let's multiply that by the unit normal vector.
现在用单位法向量乘以那个。
That is our convention to get a unit normal vector that points to the right of the curve as we move along the curve.
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。
Now, if you wanted the unit normal vector to compute flux, then you would just scale this guy down to unit length, OK?
如果想用单位法向量来计算通量，还得先把它标准化到单位长度？
A unit vector normal to the plane of t and n, which is the plane of curvature.
所构成的平面的单位向量，该平面为曲率所在的面。
A unit vector normal to the plane of t and n, which is the plane of curvature.
所构成的平面的单位向量，该平面为曲率所在的面。
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