naturally occurring radioactive substance

[naturally occurring radioactive substance]
[naturally occurring radioactive substance]

中文释义

天然放射性物质

单词分析

单词结构:

naturally occurring radioactive substance

字母数:41

记忆提示

🎯 重点记忆:

  • 单词拼写:naturally occurring radioactive substance
  • 核心含义:天然放射性物质