查询词典 unit circle

With the method and the relation between the center of a circle and a triangle, the relation between the triangle and the circle can be determined rapidly, hence to quickly and correctly determine the position relation between the projections of the triangle plane and the tool in tool axis direction, and raise the efficiency of 3-axis NC machining.

借助于该方法及圆心相对三角形的位置关系，可以快速判别三角形与圆的位置关系，从而能据此快速、准确地判别三角片与刀具两者在刀轴方向投影的位置关系，提高3坐标数控加工干涉检查的效率。

A line generated by a point on a circle rolling around another circle.

一个圆上的某点在该圆旋转另一个圆时产生的线。

A line generated by a point on a circle that rolls around inside another circle .

一个圆上的某个点在该圆围绕其内部的另一个圆旋转时所产生的线。

This paper studied the case that there is a known point of tangency of a circle and a parabola while the center of the circle is on the recession of the parabola.

应用数形结合的方法，研究了已知圆与抛物线有一个切点，而圆心在切点处抛物线的凹向的情形。

We make a copy of the implementation of points and change those parts where a circle is different from a point. struct Circle gets an additional com- ponent

我们把坐标点的实现复制下来，然后改变那些圆不同于点的地方就可以了。struct Circle多了一个组成

Consequently, the circle viewed as a point still has Circle as a type description because the pointer in its .class com- ponent has not changed. draw is a selector function, i.e., it will take whatever argument is passed as self, proceed to the type description indicated by .class, and call the draw method stored there.

这个被看作是点的圆依旧是Circle类型的，因为其类型描述结构中的。class指针成员没有变化。draw是选择子函数，也就是说，它能接受任何以self参数传来的值，找到由。class指向的类型描述符，并且调用存储在那里的方法。

If the area of first circle is greater that the second one, print the area of first circle.

如果第一个圆的面积比第二个大，列印第一个圆的面积。

If the area of second circle is greater that the first one, print the area of second circle.

如果第二个圆的面积比第一个大，列印第二个圆的面积

In Ptolemaic cosmology, a small circle, the center of which moves on the circumference of a larger circle at whose center is Earth and the circumference of which describes the orbit of one of the planets around Earth.

本轮在托勒密宇宙论中的一个小的圆周，其中心在以地球为中心的一个更大的圆周上运动，其轨迹为环绕地球运行的行星的轨道

If the radius of a circle is longer, the area of the circle will be larger.

半径越长，圆的面积越大。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。