英语词汇“riometer”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	riometer
释义	riometer /riːˈɒmɪtə/ Atmospheric Physics noun An instrument for measuring the absorption of cosmic radio waves by the ionosphere. The riometer operates by comparing the measured radio noise with a long-term average value; the difference corresponds to the amount of ionospheric absorption.. Origin 1950s; earliest use found in Geophysics & IGY. From the initial letters of relative ionospheric opacity + -meter.
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riometer