radius

radius

['reidiəs]

n.半径范围, 半径, 桡骨, 辐射区

例句与用法：

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

We can compute the circular area with radius.

我们能用半径计算出圆的面积。

The police searched all the woods within a six-mile radius.

警察搜索了在周围六英里以内的树林各处。

词形变化：

名词复数: radii |

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n.

1. 半径; 半径距离; 半径范围[C][the S][(+of)]

There are three lakes within a radius of five miles.

周围五英里之内有三个湖泊。

2. 周围, 范围[the S][(+of)]

within the radius of one's experience

在个人经验范围之内

3. 辐射状部分; (车轮的)辐条[C]

4. 【解】桡骨[C]

5. 【动】径骨[C]

6. 【昆】径脉[C]