| 单词 | hyperboloid of two sheets |
| 释义 | > as lemmashyperboloid of two sheets There are two kinds of hyperboloid: the hyperboloid of one sheet, e.g. that generated by revolution about the conjugate axis (formerly called hyperbolic cylindroid), a figure resembling a cylinder but of continuously varying diameter, like a reel narrower in the middle than at the ends; and the hyperboloid of two sheets, e.g. that generated by revolution about the transverse axis, consisting of two separate parts corresponding to the two branches of the hyperbola. The word is sometimes extended to analogous solids of higher degrees: cf. hyperbola n. b.extracted from hyperboloidn.< as lemmas |
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