它垂直于曲线。
也就是，曲线每一点上,垂直于曲线，模长为1的向量。
That means a vector that is at every point of the curve perpendicular to the curve and has length one.
或许你可以画出每点都垂直于向量场的曲线。
You might be able to draw curves that are perpendicular to it.
它还是垂直于那些曲线。
由计算所得的KI和KII数值解，得到了裂纹垂直于层面时此泥板岩的临界断裂曲线。
The critical fracture curve when cracks are vertical to the layered rock mass has also been obtained by using numerical values KI and KII.
另一种是近似圆锥体的母线是向锥体外凸出的曲线。螺旋叶片垂直于锥体表面。
Said spiral blade has a spiral curve extended from the tip of conic body.
另一种是近似圆锥体的母线是向锥体外凸出的曲线。螺旋叶片垂直于锥体表面。
Said spiral blade has a spiral curve extended from the tip of conic body.
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