| 释义 |
order of magnituden.（名词）pl. orders of magnitude 【复数】- An estimate of size or magnitude expressed as a power of ten:数量级：以10的表示的大小或幅度的大约值：Earth's mass is of the order of magnitude of 1022 tons; that of the sun is 10 27 tons. 地球质量的数量级是1022吨 ；太阳的则是10 27吨
- A range of values between a designated lower value and an upper value ten times as large:等级：处于相差10倍的两个数值之间的那一段值的范围：The masses of Earth and the sun differ by five orders of magnitude.地球与太阳的质量相差五个数量级
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