英语词汇二次发射是什么意思，二次发射的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	二次发射
释义	DEFINITIVE EXAMPLES 权威例句〔dynode〕An electrode used in certain electron tubes to provide secondary emission.中间极，二次发射电极：一种用于一定电子管作第二次发射电极美国传统〔secondary electron〕An electron produced in secondary emission.二级电子：在第二次发射中产生的电子美国传统〔secondary emission〕Emission of electrons from the surface of a substance as a result of bombardment by electrons or ions.二次发射：电子或中子爆炸时产生物质表面的电子发射美国传统
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