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单词 atto-
释义

WordReference Random House Unabridged Dictionary of American English © 2024
atto-, 
  1. Weights and Measures, Mathematicsa combining form that enters into compounds denoting a unit one-quintillionth (10-18) the size of the unit named by the stem.
  • Danish or Norwegian att(en) eighteen + -o-

Collins Concise English Dictionary © HarperCollins Publishers::
atto- prefix
  1. denoting 10–18: attotesla
    Symbol: a
Etymology: from Norwegian, Danish atten eighteen
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更新时间:2025/2/23 10:38:19