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单词 highly-enriched uranium
释义

highly-enriched uranium

English

Noun

highly-enriched uranium (uncountable)

  1. (nuclear physics, military) Enriched uranium containing at least 20% uranium-235 (some applications, such as fission weapons and naval reactors, use uranium enriched to as high as 80-95% uranium-235), and therefore capable of sustaining a nuclear fission chain reaction without needing a moderator; used in nuclear weapons and in a few types of nuclear reactors requiring very high power density or high neutron flux.

Synonyms

  • HEU
  • weapons-grade uranium

Coordinate terms

  • depleted uranium
  • natural uranium
  • slightly-enriched uranium
  • low-enriched uranium
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