vector line [数] 向量线 ; 矢量线
speed vector line 航速矢量线
velocity vector line 速度矢量线
vector line navigation 矢量线航法
Seamless Vector Line Patterns 抽线线条无缝矢量纹理
line vector [机] 线矢量
line of displacement vector 位移矢量线
coplanar line vector 共面线矢量
And, these coefficients here correspond to a vector parallel to the line.
这些系数构成的向量和直线平行。
OK, so, we've seen that if we have a vector field defined in a simply connected region, and its curl is zero, then it's a gradient field, and the line integral is path independent.
一个向量场,如果定义在单连通区域并且旋度为零，那么它就是一个梯度场，并且其上的线积分与路径无关。
It's the dot product between the normal vector of a plane and the vector along the line.
这是平面法向量，和沿直线向量的点积。
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