英音
['reɪdɪəs]

美音 [ˈredɪəs]

n. 半径(距离);用半径度量的圆形面积;半径范围;桡骨
复数: radii
易混淆的单词: RadiusRADIUS
中文词源
radius 半径
rad-,半径,根,-us,阳性格。
radius 用法和例句
- Tens of thousands of people live within the radius .
- 辐射半径之内居住着数以万计的居民。
- Thousands of residents within a 20-kilometer radius of the reactor have been evacuated as a precaution .
- 为以防万一,这座核反应堆周边20公里范围内的数千居民已被疏散。
- Specifically , luminosity is proportional to radius squared .
- 具体来说,光度与半径的平方呈正比。
- Saturday morning they increased the evacuation radius to 10 kilometers .
- 周六早上,他们将撤离半径增加到了10公里。
- Nuclear blast and wind destroyed buildings within its 1.5-mile radius .
- 核爆炸和冲击波摧毁了半径1.5英里范围内的建筑物。