英语词汇“variable radio source”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	variable radio source
释义	variable radio source variable radio source A radio source whose measured parameters change with time, especially the flux density. Many extragalactic radio sources have been observed at frequencies above 400 megahertz to vary over periods of weeks or months. The time-scale of the variations imposes an upper limit on the linear size of the varying region since the conditions are unlikely to change more quickly than the time it takes for light to travel across the region.
随便看	sadpi sadpt sadq sadr sadra sadrac sadrad sadram sadrec sadri sadr-i-azam sadri ertem sadri, mukhamed sadr, moktada al- sadrr sadrs sads sadsaa sadsac sad sack sad-sack sad sack, a sad sacked sad-sacked sad sacking

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。