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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
   • 相關詞

   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

   of the first order (or magnitude)

   • ph.
     used to denote something that is excellent or considerable of its kind

   Oxford American Dictionary

   of the first order (or magnitude)

   • ph.
     excellent or considerable of its kind

   Oxford Dictionary

3. • 更多解釋

   order of magnitude

   • IPA[ˌôrdər əv ˈmaɡnəˌto͞od]

   美式

   • n.
     a class in a system of classification determined by size, each class being a number of times ... values might be compared by order of magnitude, a staple in making ballpark estimates

   Oxford American Dictionary