英语词汇delta rays怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	delta rays
释义	delta rays plural noun Physics rays of low penetrative power consisting of slow electrons or other particles ejected from atoms by the impact of ionizing radiation 【物理】δ射线。
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