| 单词 | optical double star |
| 释义 | optical double starnountwo stars that appear close together when viewed through a telescope but are not physically associated and are often separated by a great distanceCompare binary star Words nearby optical double staroptical computer, optical crown, optical density, optical disc, optical disk, optical double star, optical effects, optical fiber, optical fibre, optical flint, optical glass Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
| 随便看 |
英语词典包含192737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。