角的正切 meaning in English

tangent of an angle

Of a dielectric , the product of dielectric constant and the tangent of its dielectric loss angle ; a measure of the heating effect which occurs in dielectrics
对于电介质来说，它是介电常数和介质损耗角的正切的乘积，这是对出现在电介质中的热效应的量度。
If we calculate the tangent of this angle , we now have a value that corresponds to the ratio between the displacement on the x axis versus the distance away from the viewer on the y
如果我们计算这个角的正切，我们就可以知道相应的比值： x轴上的位置相对于y轴上的观察者的距离的比值。