order of magnitude

英 [ˌɔːdər əv ˈmæɡnɪtjuːd]

美 [ˌɔːrdər əv ˈmæɡnɪtuːd]

n.  数量级(量度物理量大小的标准，用以10为底的指数表达)

计算机

牛津词典

noun

• 数量级（量度物理量大小的标准，用以10为底的指数表达）
  a level in a system of ordering things by size or amount, where each level is higher by a factor of ten
  1. The actual measurement is two orders of magnitude (= a hundred times) greater than we expected.
     实际测量结果比我们预料的大两个量级（即一百倍）。
  2. The problem is of the same order of magnitude for all concerned.
     这个问题对有关各方的影响是一样大的。

英英释义

noun

• a degree in a continuum of size or quantity
  1. it was on the order of a mile
  2. an explosion of a low order of magnitude
  Synonym:order
• a number assigned to the ratio of two quantities
  Synonym:magnitude

双语例句

• America and Russia do not face a problem of the same order of magnitude as Japan.
  美俄两国所面临问题的重要性与日本的不可同日而语。
• In the last 10 years researchers have advanced by roughly an order of magnitude.
  在过去10年中，研究人员大约前进了一个数量级。
• The variation will be on the same order of magnitude as the average itself.
  变动的值，会和平均值本身有相同的数量级。
• In troposcatter transmission it turns out that M is of the order of magnitude of100 to1000.
  在对流层散射通讯中已证明M在100到1000的数量级。
• Most software projects have requirements backlogs that are too big& often by an order of magnitude.
  大多数软件项目都有庞大的需求积压&通常按照数量级进行排列。
• In many cases, the price is lower by more than an order of magnitude.
  在很多情况中，价格会低一个数量级以上。
• Due to the memory storage technology used in SSDs, the performance is an order of magnitude higher than regular hard disk drives.
  由于SSD中采用了内存存储技术，SSD的性能比常规硬盘驱动器高出了一个数量级。
• For a commercial software product, the Business Case should include a set of assumptions about the project and the order of magnitude return on investment ( ROI) if those assumptions are true.
  对一个商业软件产品来说，商业案例应该包括一组关于项目和投资收益（ROI）的数量级的假设。
• Other witnesses have reported numbers of a similar order of magnitude.
  其他见证者报告的数量级类似。
• The gravimetric hydrogen production rate exceeds that of other solar-driven thermochemical processes by more than an order of magnitude.
  而分解出氢的效率以重量计算可比其它太阳能热制程的效率高出一个数量级。