该服务是一个简单的数学计算服务，提供了加法和减法运算。
This service is a simple math calculation service, providing addition and subtraction operations.
减法运算中，从被减数减去的那个数或量。
In a subtraction operation, the number or quantity subtracted from the minuend.
实验表明减法运算放大器增益带宽是硬件方法的关键。
Experiments showed that the gain-bandwidth of the subtracting operational amplifier is the key of hardware method.
设计了简单可行的脉冲减法运算电路和馈送自动转换电路。
A pulse subtraction operated circuit and an automatic conversion feeding circuit are designed.
但是，减法运算符是不可交换的；所以，需要两个操作来处理减数和被减数。
The subtract operator, however, is not commutative; therefore, you need two operations to handle the value to be subtracted and the value from which the subtraction will take place.
世界上第一台计算机EMNIAC每秒可进行A次加、减法运算。
The world's first computer per second EMNIAC can add, subtract a times.
对于加减法运算所需循环的平均数是2，而旧型号机却需12—15。
For adds and subtracts, the average number of cycles required is two, versus about 12 to 15 for the previous type.
进行类似的减法运算，得到的，2,s，电子的电离能应该是多大呢？
Same sort of subtraction problem, what do we have for the ionization energy of the 2 s electron?
该算法需在原奇数模模逆算法的基础上，增加一次乘法、一次除法和两次减法运算。
This algorithm needs additionally one times addition, one times division and two times subtraction than original modular inversion algorithm.
孩子们应该在三年级能够进行加、减法运算，在五年级结束时能够进行乘、除法运算。
Children should be able to add and subtract in the third grade. By the end of fifth grade, they should be able to multiply and divide.
在我的孩提时代，当我学会了如何做减法运算后，我成功的计算出到2000年的时候我会是几岁。
As a kid, when I first learned enough subtraction, I figured out how old I would be in the momentous year 2000.
不仅映射和减法支持并行化，映射和减法运算也可结合到单个并行循环中，这样效率更高。
Not only are mapping and reduction amenable to parallelization, but the map and reduce operations can be combined into a single parallel pass, which is even more efficient.
研究了怎样利用基于TOAD的光开关来设计全光集成电路，从而进行二进制加减法运算。
We try to exploit the advantages of TOAD-based optical switch to design an integrated all-optical circuit which can perform binary addition and subtraction.
阐述了带符号十进制数原码、补码位数的扩展和压缩方法，介绍了十进制补码的加法运算和减法运算。
The method of expansion and compression of the decimal numeral true form with symbol and ten's complement digit is introduced. And the addition and minus operations of ten's complement are introduced.
最近一项研究表明，蜜蜂可以进行加减法的运算。
Recently, a study showed that bees could perform arithmetic operations like addition and subtraction.
乘法和除法运算符（表3中列出的前四个）具有高于加法和减法的优先级。
The multiplication and division operators (the first four listed in Table 3) have higher precedence than the addition and subtraction operators.
Python对算术运算提供完整支持，包括加法、减法、乘法和除法(参见表3)。
Python provides full support for arithmetic operations, including addition, subtraction, multiplication, and division (see Table 3).
理解加法和减法是互为逆运算；
正如您所猜测的，算术运算是基本的数学操作：加法、减法、乘法和除法。
As you might guess, Arithmetic operations are the fundamental math operations: addition, subtraction, multiplication, and division.
为了提高计算速度，我们今天来学习一些加减法的简便运算。（板书课题）
We're going to learn the tricks of additions and subtractions in this class.
全是关于加减法的运算。
种族进化史研究表明，动物具备算术能力，它们运用数量感来表征可数与不可数的数量，并以此为基础进行加法、减法、乘法和除法运算。
It means they can represent countable and uncountable quantity with mental magnitude. They can perform addition, subtraction, multiplication and division.
二进制加减法，全加器实现及其性能，高速加法，带符号算术运算。
Binary Addition and Subtraction, Implementation and Performance of the Full Adder, High-speed Addition, Signed Arithmetic.
加法和减法叫做第一级运算，乘法和除法叫做第二级运算。
Addition and subtraction we call the first -progression operation, multiplication and division we call the second -progression operation.
加法和减法叫做第一级运算，乘法和除法叫做第二级运算。
Addition and subtraction we call the first -progression operation, multiplication and division we call the second -progression operation.
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