使し用よう済ずみ核かく燃ねん料りょう

noun

spent nuclear fuel

Technical term for nuclear fuel that has been irradiated in a reactor and is no longer efficient for power generation.

• 使し用よう済ずみ核かく燃ねん料りょうの再さい処しょ理りは重じゅう要ような課か題だいだ。

  Reprocessing spent nuclear fuel is an important issue.