subtraction

英 [səb'trækʃ(ə)n]

美 [səb'trækʃən]

n.  扣除; 减法

复数：subtractions　

高考TOEFLTEM8计算机

BNC.21520 / COCA.21980

柯林斯词典

• VERB 减;减去
  If yousubtractone numberfromanother, you do a calculation in which you take it away from the other number. For example, if you subtract 3 from 5, you get 2.
  1. Mandy subtracted the date of birth from the date of death...
     曼迪用去世的日期减去出生的日期。
  2. We have subtracted $25 per adult to arrive at a basic room rate.
     我们已给每位成人房客减去了 25 美元，这就是基本的房费价格了。

英英释义

noun

• the act of subtracting (removing a part from the whole)
  1. he complained about the subtraction of money from their paychecks
  Synonym:deduction
• an arithmetic operation in which the difference between two numbers is calculated
  1. the subtraction of three from four leaves one
  2. four minus three equals one
  Synonym:minus

双语例句

• This service is a simple math calculation service, providing addition and subtraction operations.
  该服务是一个简单的数学计算服务，提供了加法和减法操作。
• In a subtraction operation, the number or quantity subtracted from the minuend.
  在减法运算中，从被减数减去的那个数或量。
• Method of speech enhancement based on recursive averaging and spectral subtraction
  利用递归平均和谱减技术的语音增强方法
• A novel algorithm for moving detection, which employed adaptive background subtraction and symmetrical differencing method, was presented.
  提出一种基于动态阈值对称差分和背景差法的运动对象检测算法。
• So the adding and the subtraction of vectors is way more complicated than just scalars.
  因此矢量的加法和减法，要比标量复杂。
• Pupils are taught addition and subtraction first.
  小学生首先学加法和减法。
• An approach to speech-sound enhancement is proposed based on the spectral subtraction.
  提出了一种基于谱减法的语音增强算法。
• In other words, we can use the magic of subtraction.
  换句话说，我们可以借助减法的魔力。
• The main idea of the spectral subtraction algorithm is noise detection and spectral subtraction rule.
  谱相减语音增强算法的核心是噪声检测和谱减规则。
• One of the common methods is based on the background subtraction.
  减背景法是常用的方法之一，但其受环境光照影响；