单词subtraction
n.: 扣除；【数】减法
网络: 减去；减法运算；相减
减去,扣除; 【数学】减法
〔律〕不履行义务
复数：subtractions
n.deductionremovalwithdrawaldebitdeletion
second, addition and subtraction how much is the number of pulses.
二是加减的脉冲个数是多少。
I suspect that subtraction would be a harder operation for animals to understand and deal with, but little research has been done.
我怀疑减法对于动物来说太难理解和掌握，不过这类研究真的很少。
Renovating existing buildings, advertising, plaque too much to use subtraction, and should not be approving new advertising and plaque.
现有建筑墙体上的广告、牌匾太多，要采用减法，原则上不应再审批新的广告及牌匾。
Today he meets two numbers and thinks whether he could get a result of 1 by doing at least one operation (addition or subtraction).
今天，他碰到两个数字，判定他是否需要至少做一次手术（加或减为1的结果）。
Through conversion, it is clear that each of the age factor for the addition and subtraction of a body organ Life of life.
通过换算，就可以清楚的知道每个加减龄因素对于身体器官的寿命的影响年限。
Do we really think "drilling addition and subtraction in an age of calculators is a waste of time" ?
我们真的认为“训练学生加减法是在浪费时间”吗？
"Single peak" of absorbance subtraction method in infrared spectrometry was used to determine mixtures in visible and ultraviolet spectra.
前言：将红外光谱分析中“独立峰”差谱法应用于可见光区混合物谱峰的分离和测定。
The specification for a calculator probably states that it will perform correct addition, subtraction, multiplication, and division.
一个计算器的说明书可能会声明它将执行正确的加法，减法，乘法和除法运算。
Obviously this affects conversion operations, buttheeffect ripples into the addition, subtraction, and comparison operations as well.
显然，这将影响货币的币值转换工作，同时会波及货币的加法，法以及比较运算。
In the last two months they have been working on Multiplication and Division. Addition and Subtraction are the subjects two months ago.
最近的两个多月他们一直在学习乘除法，加减法是两个多月前学的。