熱ねつ中ちゅう性せい子し炉ろ

noun

thermal-neutron reactor

Technical term in nuclear engineering; a reactor that uses moderated (thermal) neutrons to sustain fission.

• 熱ねつ中ちゅう性せい子し炉ろは、減げん速そく材ざいを使つかって中ちゅう性せい子しの速そく度どを落おとす。

  A thermal-neutron reactor uses a moderator to slow down neutrons.