radius的中文翻译
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radius1
UK
/ˈreɪdiəs/
US
/ˈreɪdiəs/
半径,半径距离
noun
(pl.radii)
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a straight line between the centre of a circle and any point on its outer edge; the length of this line
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a round area that covers the distance mentioned from a central point
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They deliver to within a 5-mile radius of the store.
他们提供5公里半径内的商店。
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the shorter bone of the two bones in the lower part of the arm between the elbow and the wrist, on the same side as the thumb