Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。

Cosmic Rays

宇宙射线

What is a "cosmic ray"?

什么是‘宇宙射线’?

What is a muon?

什么是缪子?

Where do muons come from?

muons 来自哪里?

How are muons detected?

μ子如何被探测?

Describe what is meant by "radioactive halflife".

‘放射性半衰期’指的是某种放射性物质的原子核有半数发生衰变所需的时间。
*Cosmic rays

*Muon

*Half-life

宇宙射线、μ子、半衰期
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