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

• The country's debt this year will be of the same order of magnitude as it was last year.
  今年这个国家所欠的债务和去年相比在一个数量级上。
• At first sight it might be thought that these two effects would be of the same order of magnitude.
  初看起来，可能会认为两个效应的大小属于同一个数量级。
• 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。
• The estimate for the building work is of the order of magnitude we were expecting.
  对建造房子所花费用的估计和我们预料的差不多。
• 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。
• During pre-concept phase, the development team provides a rough order of magnitude ( ROM) for proposed release content and ( not committed) target dates.
  在制定概念前阶段，开发团队提供粗数量级（ROM）的提议发布内容和（未确定的）目标日期。
• 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。
• So there seems to be a rough agreement on at least the order of magnitude of recent job losses.
  这样看来，至少在最近的失业情况的数量级上，前后两项调查得出了大致相同的结论。
• The raw material concentration is one order of magnitude lower than the concentration in the traditional fixed state process.
  原料浓度比传统定态过程低一个数量级。
• 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。