The radius of a circle is 4cm, how many square centimeters is its area?
一个圆的半径是4厘米，它的面积是多少平方厘米？
That is a circle of radius 1. That's the unit circle.
是一个半径为1的圆，那是单位圆。
So, that's actually a great circle meridian of length, well, I mean, well, the radius is the radius of the sphere.
路程就是个大圆，我的意思是，这个圆的半径是球的半径。
So now, this parallel as a circle of radius, well, the radius is less than a because if your vertical is to the North Pole, it will be actually much smaller.
这个平行线是一个有半径的圆，这个半径是小于a的，因为如果这个环越靠近北极点，它的半径实际上会越来越小。
And that circle has a radius which, according to the manufacturer, is 115 meters with an uncertainty of about...
圆环有一个半径，根据制造商所说，是11米，前后差值大约是。
R So if C is the circle, R is the disk of radius A.
就是C所包围的区域。，Well，，R，is，the，region，enclosed，by，C。,如果C是一个圆，R就是半径为a的圆盘。
Next, create an SPL function that returns the area of a circle given its radius.
接着，创建一个spl函数，它将返回给定半径的圆的面积。
So, this is a piece of a circle of radius a.
这是这个圆的一小部分。
In this chapter, we are (finally) going to write fruitful functions. The first example is area, which returns the area of a circle with the given radius.
在本章，我们总算要写一些有返回值的函数了。第一个例子就是一个计算给定半径的圆的面积的函数。
This graphics object can be used to do vector drawing on the Sprite. For example, see the code to draw a circle of radius 5.
这个图片对象可被用来在sprite上进行矢量作图。
All of the impacts can be contained within a circle having a 100 meter radius.
所有的弹着点可以囊括在一个半径为100米的圆圈之内。
A radian is the Angle subtended by an arc of a circle whose length is just equal to the radius.
一弧度就是长度刚好等于半径的一段圆弧所对的圆心角。
This program can be used LV draw a circle, the radius of the park through the button to modify, and coordinate positions.
说明：这个程序可以用LV画一个圆形，通过按钮修改园的半径，和坐标位置。
This line is the radius of the circle which points to a position in the sky represented by the small circle.
这根线是圆的半径，指出了天空的一个位置，而小圆就是指天空。相合不是一个测量法，而是在天空的一个位置或者地点。
I would to plan for the center of the circle, practice of radius, with industrious hands to draw a perfect circle.
我会以计划为圆心，实践为半径，用勤奋的双手画出一颗完美的圆。
Corner Area: the edge line with the goal line cross, have a dot, radius is 1m, drawing a quarter of circle arc.
角球区：以边线和球门线交叉点为圆点，以1米为半径，向场内各画一段四分之一的圆弧，这个弧内地区叫角球区。
The method of least square circle is adopted to measure tool, head radius when a tool checking instrument measuring too, parameter.
对刀仪在测量刀具时，采用最小二乘圆法来测量刀尖半径；
The transition curve of 6th power function is a higher quality of transition curve in theory and practice. It is also suitable for use to a small radius circle curve as a transition curve.
理论和实践证明，六次代数式缓和曲线是一种质量较高的缓和曲线，它适用于作小半径圆曲线的过渡曲线。
The transition curve of 6th power function is a higher quality of transition curve in theory and practice. It is also suitable for use to a small radius circle curve as a transition curve.
理论和实践证明，六次代数式缓和曲线是一种质量较高的缓和曲线，它适用于作小半径圆曲线的过渡曲线。
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