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- The reciprocal of the radius of a circle. 曲率一个圆半径的倒数
- The radius of a circle described by a crank, cam, or similar machine part. (曲轴的)半径曲柄、凸轮或类似机器部件形成的圆的半径
- The radius of a circle described by a crank,cam,or similar machine part. （曲轴的）半径曲柄、凸轮或类似机器部件形成的圆的半径
- 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。
- 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?
- Radius of a circle can be imported, have calculated the interface button, click the button to show the circumference of a circle and square. 圆的半径可以任意输入，，界面上有计算按钮，单击按钮后能显示圆的周长和面积。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- A unit of angular measure equal to the angle subtended at the center of a circle by an arc equal in length to the radius of the circle, approximately57=17?4.6". 弧度平面角的一种衡量单位，其大小为长度等于半径的弧对的圆心角，1弧度角约等于57＝17?44。6
- The diameter and the circumference of a circle. 圆的直径和圆周相关联。
- Tell the names of each part of a circle. 说出圆各部分的名称。
- He should have been the sun of a circle. 他本应该做一个周而复始的太阳。
- Almost all the balls follow the shape of a circle. 几乎所有球类都呈圆形。
- Circumference:The boundary line of a circle. 圆周:一个圆的边界线.
- A diameter passes through the center of a circle. 直径从圆心穿过。
- Teacher: What is the perimeter of a circle? 师：什么是圆的周长?
- Any two diameters of a circle intersect each other. 圆周内两直径必相交。
- Now he twisted himself into a circle, then stretched himself out on the ground like the trunk of a fallen tree. 它先把身子缩成一团，然后又申长，活象一截伐倒在地的树桩。
- extend like the radii of a circle. 延伸好像一个圆的半径。
- the area enclosed by two perpendicular radii of a circle. 由九十度弧与两条垂直的半径围成的区域。
- What is the radius of this circle? 这个圆的半径有多长?
