| 单词 | unit sphere |
| 释义 | > as lemmasunit sphere unit sphere n. a sphere having a radius of one unit. ΚΠ 1848 Trans. Royal Irish Acad. 21 ii. Science 276 The position of the point R upon the unit sphere being now likewise indeterminate [etc.]. 1902 Pop. Astron. 10 408 Let us now compute the values of a, b and p first for a unit sphere. 2001 M. Gardner Colossal Bk. Math. xi. 137 If the rod is allowed to rotate in 3-space, the free end traces a unit sphere. < as lemmas |
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