radius-主題

radius

['reidiəs]

n.半徑範圍, 半徑, 橈骨, 輻射區

例句與用法：

The radius of a circle described by a crank, cam, or similar machine part.

(曲軸的)半徑曲柄、凸輪或類似機器部件形成的圓的半徑

We can compute the circular area with radius.

我們能用半徑計算出圓的面積。

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

警察搜索了在周圍六英里以內的樹林各處。

詞形變化：

名詞複數: radii |

英文解釋:

名詞 radius:

the length of a line segment between the center and circumference of a circle or sphere

同義詞：r

a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)

a circular region whose area is indicated by the length of its radius

the outer and slightly shorter of the two bones of the human forearm

support consisting of a radial member of a wheel joining the hub to the rim

同義詞：spoke, wheel spoke

以上來源於大辭典