英语词汇“electron beam”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	electron beam
释义	electron beam noun Physics A stream of electrons in a gas or vacuum.This random emission of photons leaves the resulting electron beam with a fuzzy, rather than a sharply defined focus.... Finally we stained the sample, attaching heavy-metal ions to increase its electron density in the electron beam. In the space between the flat type screen and the back electrode, linear cathodes and an electrode unit including an electron beam extracting electrode are arranged.
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