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

• 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。
• 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。
• The extremely crude treatment serves to estimate the order of magnitude of the response.
  精确度很差的处理方法可以用来估计响应的数量级。
• 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。
• Potentially catastrophic tsunamis, a study says, making the risk of tsunamis an order of magnitude greater than current global estimates suggest.
  一项研究说，即便是在海地等沿海地区的断层发生一般的地震也可能导致灾难性的海啸，这让海啸的风险比目前的全球估计大了1个数量级。
• China is an order of magnitude bigger even than Japan.
  中国的数量级甚至高于日本。
• Comparing with the model-predicted values and the experimental data of conventional packed beds, KG a obtained from our experiment was approximately an order of magnitude higher.
  若与传统填充床的经验式和实验值比较，则高重力场下的KGa则大约高了一个数量级之多。
• 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。
• When auxiliary heaters are turned on the chamber pressure may rise by an order of magnitude or more.
  当辅助加热器接近燃烧室工作时，压强就可能上升一个数量级或更多。
• 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。