| 单词 |
Sofar |
| 释义 |
Sofar|ˈsəʊfɑː(r)|
Also SOFAR.
[See quot. 1948.]
A system in which the sound waves from an underwater explosion (either artificial or natural) are detected at a number of listening stations so that its position can be fixed; more generally, detection of deep explosions a great distance away.
1947Britannica Bk. of Year 841/2 An underwater sound system, called ‘Sofar’.., made possible the location of air and ship survivors as far as 2,000 mi. from shore. 1948Ewing & Worzel Long-Range Sound Transmission 12 A network of four listening stations is being established in the Pacific by the Navy Department, and the name SOFAR, from the words SOund Fixing And Ranging, has been assigned to the system. 1961H. H. Koelle Handbk. Astronaut. Engin. xxviii. 28 The missile must carry a Sofar bomb when a deep-water detection system is used, in order to provide a deep sound source. 1966McGraw-Hill Encycl. Sci. & Technol. XIV. 429/2 Shock waves used in Sofar propagate long distances under water, being refracted by the isothermal layers in the oceans. 1979Nature 20–27 Dec. 820/2 The deep ocean sound channel is used to obtain very long range (typically >2,000 km) acoustic transmission via totally refracted propagation paths (SOFAR propagation). |
英语词典包含277258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。
相关内容：
相关热词搜索：sofar英英词典英英释义英语词汇意思用法释义英语
单词 soferand 释义 soferandobs. form of sovereign a.{var l=document.getElementsByTagName("......