subtraction
英 [səb'trækʃ(ə)n]
美 [səb'trækʃən]
n. 扣除; 减法
复数：subtractions
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.- 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。 - 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。
- Mandy subtracted the date of birth from the date of death...
英英释义
noun
- the act of subtracting (removing a part from the whole)
- he complained about the subtraction of money from their paychecks
- an arithmetic operation in which the difference between two numbers is calculated
- the subtraction of three from four leaves one
- four minus three equals one
双语例句
- 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； - 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。 - A method for performance evaluation of motion detection algorithm based on background subtraction;
分析了时间差分法、背景减除法、光流法等常用的几种运动人体检测算法。 - When combining addition and subtraction with multiplication and division it is necessary to take interim totals.
当加减法和乘除法联合运算时，必需取得中间和数。 - 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。 - The easiest one to remember is that multiplication and division happen before addition and subtraction.
其中，最简单的规则就是乘法和除法在加法和减法之前完成。 - The arithmetic operations include addition, subtraction, multiplication and division.
算术运算包括加、减、乘和除。 - Pupils are taught addition and subtraction first.
小学生首先学加法和减法。 - Number Keys and Basic Math Functions: Addition, Subtraction, Multiplication, Division.
有多少钥匙和基本的数学函数：加法，减法，乘法，记名表决。 - 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。