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Rays formed by streams of positive particles; specifically = canal rays; also singular when used attributive.
Early 20th century; earliest use found in Joseph Thomson (1856–1940), physicist.
礼仪网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。