| 单词 | anchor ring |
| 释义 | > as lemmasanchor ring anchor ring n. (a) a large metal ring to which a cable may be fastened; (b) Geometry a torus (torus n. 4) that resembles a ring, formed by the revolution of a circle about a line that lies in the same plane. [With sense (a) compare Dutch ankerring (1681) and Old Icelandic akkerishringr.] ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > three-dimensional > solid of revolution > formed from curve > torus anchor ring1783 annulus1802 tore1867 torus1870 1671 J. Ogilby tr. O. Dapper et al. Atlas Chinensis 612 They have no Anchor-stocks nor Rings [Du. gene ringen], but through the end where our Anchor-stock is made fast, runs a Rope.] 1783 H. Cort Brit. Patent 1351 (1856) 4 For uses that are to be made round, such as anchor rings and the like, I work them at an anvil with a semicircular groove. 1863 P. Frost & J. Wolstenholme Treat. Solid Geom. xiv. 213 An anchor ring, supposed to be generated by the revolution of a circle about an axis in its plane not intersecting the circle. 2009 Proc. Royal Soc. A. 465 3584 Consider a torus, also known as an anchor ring, of inner radius R1 and outer radius R2. 2011 Cape Times (Nexis) 8 Sept. 8 The payload capacity is 800 kg, and six anchor rings are provided in the load area for securing heavy goods in place. < as lemmas |
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