英语词汇“aston dark space”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	aston dark space
释义	as·ton dark space \ˈastən-\ noun Usage: usually capitalized A Etymology: after Francis W. Aston died 1945 English chemist and physicist : a nonluminous layer between the cathode surface and the cathode glow in a vacuum tube
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