复数： radii
易混淆的单词： RadiusRADIUS

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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。