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1. Oxford Dictionary

   order of magnitude

   • IPA[ˌɔːdər əv ˈmaɡnɪtjuːd]

   英式

   • n.
     a class in a system of classification determined by size, typically in powers of ten；size or quantity

   • noun: order of magnitude, plural noun: orders of magnitude

2. • 釋義

   n.

   名詞

   • 1. a class in a system of classification determined by size, typically in powers of ten the forces between atoms on a polymer chain are about two orders of magnitude stronger than those between chains
   • ▪ size or quantity the new problems were of a different order of magnitude
   • ▪ the arrangement of a number of items determined by their relative size the items are arranged in ascending order of magnitude