| 单词 | 911 |
| 释义 | 911 The dialing sequence used in the United States for calls for emergency assistance from police, fire, and ambulance services. Calls to 911 are routed to a public safety access point (PSAP). Enhanced 911 (E911) provides caller location information to the PSAP. See also E911 and PSAP. 2001: A Space Odyssey The movie script was written by Arthur C. Clarke and Stanley Kubrick, and based on Clarke’s short story “The Sentinel.” In telecommunications circles, Clarke is better known as the inventor of communications satellites. He publicly unveiled the concept in an article entitled “ExtraTerrestrial Relays: Can Rocket Stations Give World-wide Radio Coverage,” published in Wireless World in February 1945. See also Clarke, Sir Arthur C. 74570c01.qxd 9/12/07 12:34 AM Page 17 |
| 随便看 |
|
科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。