单词 | spot beam |
释义 | spot beamspot beam[′spät ‚bēm]spot beamA communications satellite signal that transmits to a pinpointed geographic area on earth. Spot beam technology allows different data to be sent to different locations using the same carrier frequencies. For example, local TV programs can be transmitted to multiple counties within a state; however, the beam footprint is naturally circular and cannot correspond to local jurisdictions. See communications satellite. |
随便看 |
|
英语词典包含2567994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。