Now, here we have a perpendicular line, means straight at 90 degrees or at a right angle to another line.

现在，这里我们有一条垂直线，意思是与另一条线成 90 度角或直角。

Oftentimes, just going in a single direction to follow the form and then hitting it with a little bit of perpendicular form line to create a nice smoothing effect.

通常，只需沿一个方向跟随形状，然后用一点垂直的形状线击打它即可产生良好的平滑效果。

Combining all these factors, we find that the magnetic flux is equal to the strength of the magnetic field times the area of the loop, times the cosine of the angle between the magnetic field and that perpendicular line.

结合所有这些因素，我们发现磁通量等于磁场强度乘以环路面积，乘以磁场与垂直线之间夹角的余弦。