radii

 
['reɪdiaɪ]     ['reɪdiaɪ]    
  • n. 半径
  • 名词radius的复数形式.
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半径
名词radi..

radii的用法和样例:

例句

用作名词 (n.)
  1. A plane figure bounded by two radii and the included arc of a circle.
    由两个半径和两个半径中间的弧所形成的一个平面形状。
  2. It is now necessary to introduce a sign convention for radii of curvature.
    现在必须介绍曲率半径的正负号规则。

词汇搭配

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