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

• 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。
• 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。
• 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。
• 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。
• Customer problem solved: The public cloud environment will let the company handle the workloads that may be as much as an order of magnitude greater than it is used to.
  所解决的客户问题：公有云环境将允许公司处理比之前高达一个数量级的工作负载。
• China is an order of magnitude bigger even than Japan.
  中国的数量级甚至高于日本。
• 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。
• A good framework can reduce the cost of developing an application by an order of magnitude.
  一个好的框架可大大降低应用系统的开发成本。
• There is much less index access and no index AND'ing so that the overall performance can be one or two order of magnitude better-depending on predicate selectivity.
  只有相当少的索引访问且没有索引AND'ing，这样整体性能将提高一个或两个数量级&取决于谓词选择。
• 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。