单词	beta particle
释义	beta particleˈbeta ˌparticle noun [countable] technical an electron or positron that is sent out by some radioactive substances
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英语词典包含52748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。