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Word · 単語
radioactivity
  1. 1 radioactivity
  2. 2 radiation
  3. 3 radioactive material
N1
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#14876
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Mastered counts as known everywhere (frontier, map, extension) but never appears in the quiz again. New wipes the review history for this item.

· examples

  • The radioactivity leaked out of the nuclear power plant.

  • The rain is radiologically inactive this time.

  • Another interesting source of energy is the heat that can be recovered from radioactive waste material.

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