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单词 critical mass
释义

critical mass

​noun
UK
Word Forms
singularcritical mass
pluralcritical masses
DEFINITIONS2
  1. 1
    singular/uncountable the smallest number of people or things needed to make something happen
    Synonyms and related words
    Small amounts or pieces of something
    bit
    piece
    fragment
  2. 2
    countable/uncountable ​physicsthe smallest amount of a substance needed to cause a nuclear reaction
    Synonyms and related words
    Nuclear power
    atomic energy
    cold fusion
    core

critical mass

​noun
US
Word Forms
singularcritical mass
pluralcritical masses
DEFINITIONS2
  1. 1
    countable/uncountable ​physicsthe smallest amount of a substance needed to cause a nuclear reaction
    Synonyms and related words
    Nuclear power
    atomic energy
    cold fusion
    core
  2. 2
    singular/uncountable the smallest number of people or things needed to make something happen
    Synonyms and related words
    Small amounts or pieces of something
    bit
    piece
    fragment
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更新时间：2026/9/12 8:48:01