英语词汇natural background radiation的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	natural background radiation
释义	natural background radiation 英?[?n?t??r?l ?b?kɡraund ?reidi?ei??n] 美?[?n?t??r?l ?b?k?ɡra?nd ?redi?e??n] 释义天然本底辐射
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英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。