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

• 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
• 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。
• The first two basic operations in mathematics are addition and subtraction.
  数学中两个最基础的运算是加和减。
• Background subtraction should be solved at first in intelligence surveillance and auto target recognition.
  背景消除是智能视觉监控和自动目标识别与跟踪首先要解决的问题。
• Objective To assess the displaying capabilities and advantages of routine CTA and subtraction CTA of the jugular bulb.
  目的探讨常规CTA及减影CTA技术显示颈静脉球的能力及优势。
• Requires addition, subtraction, multiplication, division a function of the design.
  要求加法、减法、乘法、除法各设计一个函数。
• Businessman's books, records income and expenditure, two Numbers subtraction, is profitable.
  商人的书，记录收入和支出、两个数字减法，是有利可图。
• 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；
• 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。
• 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。