Definition & Meaning

yǔ zhòu shè xiàn

宇 宙 射 线

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Chinese dictionary
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n.cosmic rays
- kè zhǔ yào yóu yǔ zhòu shè xiàn chǎn shēng yú dà qì céng shàng bù
  氪主要由宇宙射线产生于大气层上部。
  Kr is produced by cosmic rays in the upper atmosphere.

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