大家都搜：
圆的中心
圆心
1、areas of circle───圆的面积
2、equation of a circle───圆方程
3、perimeter of a circle───圆的周长
4、center of───……的中心
5、circle of sarcasm───讽刺的圈子
6、diameter of a circle───圆的直径
7、steamdraw a circle───画一个圆
8、circumfuse of a circle───圆的圆周
9、the circle of───圆的
1、A line segment that joins the center of a circle with any point on its circumference.───圆半径：将圆心与圆周上任一连接起来的线段。
2、A game originating in Scotland in which two four-person teams slide heavy, oblate stones toward the center of a circle at either end of a length of ice.───冰上溜石游戏：一种源于苏格兰的游戏，两队比赛，每队四人，将沉重的椭圆形石头滑向位于冰道两端的圆圈的中心。
3、With the Lagrange multiplier method, the minimum distance of the center of a circle and a quadric surface was provided and the tangency condition of curve and surface was given.───利用拉格朗日乘子法求解二次曲线和二次曲面之间的最小距离，给出了曲线与曲面相切的条件。
4、Wildfire rules of the game, all the participants with his back to center of a circle surrounded by a circle, close your eyes.───野火游戏的规则是，所有的参与者背对圆心围成一个圆圈，闭上眼睛。
5、The distance from the center of a circle to the edge is the same at any given point.───从圆心到圆周任何一点的距离都是一样的。
6、The point in the middle of a circle is called the center of a circle. It's represented by the letter O.───把圆中心的一点叫做圆心，圆心一般用字母表示。
7、Any line drawn through the center of a circle is normal to the circumference.───通过圆心画的任何直线均垂直于圆周线。
8、A diameter passes through the center of a circle.───直径从圆心穿过。
9、Every man is the center of a circle whose circumference he cannot pass.───每个人都是生活在他自己的不能越过的圈子的中心。
1、A diameter passes through the center of a circle.
2、Using the theory of mapping geometry, we constitute the Parametric Equation Model to get the picture coordinates in the picture plane of the center of a circle from the drone.