| 单词 | ring vortex |
| 释义 | > as lemmasring vortex ring vortex n. a vortex which rotates around an axis having the form of a ring; = vortex-ring n. at vortex n. Compounds 1. ΚΠ 1837 Jrnl. Franklin Inst. 19 120 The only known vortex whose axis surrounds a common centre, and which, if that axis should chance to be in a horizontal plane, may gyrate in an upward direction on its inward limit, is the ring vortex, which is sometimes formed artificially, by the discharge of cannon, or other fire-arms. 1870 Nature 22 Sept. 421/1 The generation of a ring-vortex is of course equally beyond the power of natural causes. 1938 Proc. Royal Soc. A. 165 519 Nodal regions separating up and down motions exist, and it is not improbable that these motions arise from the presence of ring vortices. 1995 C. Sagan Demon-haunted World iv. 73 Were the figures caused by strange whirlwinds called ‘columnar vortices’, or even stranger ones called ‘ring vortices’? < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。