Radii

['reɪdɪaɪ] or ['redi,ai]

解释:

(n.) pl. of Radius.

(pl. ) of Radius

班尼特手打

例句:

For example, in a wheel and axle of radii 20 and 4, respectively, a given weight at _P_ would balance 5 times as great a load at _W_. 伯莎M.克拉克. 科学通论.

班尼特手打

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