primary cosmic ray

英 [primary cosmic ray]
美 [primary cosmic ray]

中文释义

原宇宙线

单词分析

单词结构：

primary cosmic ray

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：primary cosmic ray
  • 核心含义：原宇宙线

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更新时间：2026-03-21 19:05:17