| 单词 | line receiver |
| 释义 | line receiverline receiverA radio-astronomy receiver that is either tuned to receive signals in only one narrow band of frequencies, the center frequency being adjustable, or that has a broad bandwidth divided into many narrow channels of fixed frequency, the outputs of the channels being kept separate from one another. Line receivers are used in molecular-line radio astronomy where the radio emissions are of narrow bandwidth. They are also used to study the distribution and relative velocity of neutral hydrogen (H I) in our own and in nearby spiral galaxies (see H I region). |
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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。