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单词 atomic bomb
释义

WordReference Random House Learner's Dictionary of American English © 2024
aˈtom•ic ˈbomb or ˈat•om ˈbomb,n. [countable]
  1. Physicsa bomb whose power comes from splitting atoms of certain elements.
Also called A-bomb.
WordReference Random House Unabridged Dictionary of American English © 2024
atom′ic bomb′, 
    1. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy.
    2. a bomb whose explosive force comes from a chain reaction based on nuclear fission in U-235 or plutonium.
    Also, atom bomb. Also called A-bomb, fission bomb. 
    • 1910–15

Collins Concise English Dictionary © HarperCollins Publishers::
atomic bomb, atom bomb n
  1. a type of bomb in which the energy is provided by nuclear fission. Uranium-235 and plutonium-239 are the isotopes most commonly used in atomic bombs
    Also called: A-bomb, fission bomb
    Compare fusion bomb
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更新时间：2025/7/23 2:30:20