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1·I have a parametric equation for my surface.

有曲面的参数方程。

2·That is a parametric equation for the sphere.

那是球体的一个参数方程。

3·And, so when we think of the trajectory of the moving point, that's called a parametric equation.

而当我们考虑运动点的轨迹的时候，轨迹可以称作是参数方程。

4·The geometric meaning for the parametric equation of ellipse is a familiar thing (See example 1).

椭圆的参数方程的几何意义是众所周知的(见例1)。

5·Finally it summarizes the traits of problems which are suitable for using the parametric equation.

最后总结了适宜用参数方程解题的题型特点。

6·Numerical example showed that the parametric equation is rational to describe the shape of mooring line.

算例表明，描述锚链线形状的参数方程是合理的。

7·So, now, just to show you that we can do a lot of things when we have a parametric equation, here is a small mystery.

现在我们可以做很多事情了，因为我们有了参数方程，现在有一件神秘的事。

8·An algorithm which can draw any complex surfaces expressed by explicit equation or parametric equation was given.

提出了显式方程和参数方程表示的曲面的一种绘制算法，该算法可以绘制任意复杂的方程曲面。

9·Author presented a concise gradual derivation about higher derivative whose function defined by parametric equation.

求由参数方程所确定的函数的高阶导数，提出了一种较为直观、简便的逐次求导方法。

10·In this paper, the parametric equation and radiation field formulas for a parabolic torus reflector antenna are given.

本文给出了抛物环面天线的参数方程和辐射场公式。