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

• Background subtraction and interference correction are the crucial processes to improve the precision and the resolving power of the electron microprobe analyzer.
  对提高电子探针分析精度和分辨本领的关键和难点-背景扣除和重叠峰修正的理论和方法发展进行了综述。
• 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。
• This new algorithm uses the background subtraction method to get the foreground image, and then gets the binary image using threshold value and makes the morphology processing.
  该算法利用背景差法获得前景图像，然后进行二值化和形态学处理，再和背景帧进行比较来对滞留和搬移物体进行检测和分类。
• The arithmetic operations include addition, subtraction, multiplication and division.
  算术运算包括加、减、乘和除。
• 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。
• The plus sign is used in addition and the minus is used in subtraction.
  加号用于加法；减号用于减法。
• In subtraction, one never "carries" a digit or bit on to the next left place-weight.
  在减法，一个从来没有“携带”数字或比特的下一个离开的地方体重。
• 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。
• You've just learnt the subtraction.
  你们刚学了减法。