英语词汇“radium clock”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	radium clock
释义	radium clock noun : an electroscope alternately charged by the accumulation of alpha particles from radium in a closed tube and discharged by automatic grounding at regular intervals
随便看	adélie adélie penguin ae AE AE aeaean aebleskive aecial aecidial aecidiospore aecidium aeciospore aeciosporic aecium aecology aedeagal aedeagus aedes aedicula aedicular aedicule aedile aedilitian aedility aedilium

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