order of magnitude

恒星等级，数量级

同：	[n.] magnitude, order

a degree in a continuum of size or quantity
- it was on the order of a mile
- an explosion of a low order of magnitude
[同] order, order of magnitude
a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10
[同] magnitude, order of magnitude

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