查询词典 point ellipse

At the point at which that line intersects the ellipse, Windows begins drawing an arc in a counterclockwise direction around the circumference of the ellipse.

在这条线与椭圆相交的点，Windows 开始逆时针方向环绕椭圆的周围绘制一个弧。

At the point at which that line intersects the ellipse, windows begins drawing an arc in a counterclockwise direction around the circumference of the ellipse. windows also uses an imaginary line to connect with the center of the ellipse.

在这条线与椭圆相交的点，windows 开始逆时针方向环绕椭圆的周围绘制一个弧。windows 也用一条假想的线连接和椭圆的中心。

If the starting point and ending point of the curve are the same, a complete ellipse is drawn

如果曲线的起点和终点相同，就可以画出一个完整的椭圆。

If the point of the ellipse, the vrachyaxis ratio 4: 3, the original 4 per cent of elliptic point Sun on the rest is not 1％, but not all get as the point of vrachyaxis length happens to be a circular diameter of 3% of the net-point.

如果把这个椭方不面的不幼、不幼轴比例规不退为4： 3，则本来4％的椭方不面晒到版上剩下的不离不是1％，而是残被晒不有了！因为这个不面的不幼轴不幼量刚好是方形3%网不面的直径。

So, the approximate calculating formula of parabola and the length of ellipse arc is developed by the method of finding experience formula from point of view of simplifying the calculating process and getting certain accura...

本文从既能简化计算又能达到一定精度的设想，通过找经验公式的方法给出了计算机抛物线及椭圆弧长的近似公式，并给出了常用区间上计算抛物线和椭圆弧长的一次式和二次式。

Then with the Direct Selection Tool, select the right anchor point in the ellipse.

然后与直接选择工具，选择正确的定位点，在椭圆形。

The sums of the distances from the foci to any point on an ellipse is constant.

从焦点到椭圆上任一点的距离之和是一个常数。

As to ellipses, a new method using RHT is proposed for ellipse detection, which uses two randomly picked points and one searched point to calculate the ellipse parameters via the polar and pole definition of ellipses.

对于椭圆，论文提出一种新的基于RHT的三点椭圆检测法，它从椭圆的极和极线定义出发，利用随机采样到的两点和搜索获得的一点来确定椭圆参数。

The curve begins at the point where the ellipse intersects the first radial and extends counterclockwise to the point where the ellipse intersects the second radial. A radial is a line segment drawn from the center of the ellipse to a specified endpoint on the ellipse.

曲线由椭圆与第一个径向线相交的点开始逆时针延伸到椭圆与第二个径向线相交的点（径向线是指从椭圆的中心向椭圆上给定的终点之间的一段连线）。

Case one: ignoring atmosphere resistance, the impact point is estimated using the ellipse theory with the data of angle measurement . Case two: considering atmosphere resistance, the coefficient of missile trajectory is estimated by EKF and the impact point is estimated using missile's dynamic model.

忽略大气阻力，根据椭圆理论，利用自由飞行段所获得的弹道参数信息估计导弹落点；考虑大气阻力，通过滤波手段得到导弹的弹道系数，再利用导弹的动力学模型递推精确估计导弹落点。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。