natural background r
查询英语单词中文释义、音标、发音和例句。
natural background radiation
英
[natural background radiation]
美
[natural background radiation]
中文释义
天然本底辐射
单词分析
单词结构：
natural background radiation
字母数：28
记忆提示
🎯 重点记忆：
- 单词拼写：natural background radiation
- 核心含义：天然本底辐射
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更新时间：2026-09-02 00:09:13