布尔运算

The basic definition of Boolean quantities has led to the simple rules of addition and multiplication, and has excluded both subtraction and division as valid arithmetic operations.

布尔数量的基本的定义引导了加法和乘法的简单规则，同时排除了减法和除法作为合法的算术运算。

In Boolean algebra, an operator that indicates an executing operation and generally is located between two operands.

在布尔代数中，表示要执行的运算的算符。通常写在两个操作数之间。

A new method based on Boolean logic operation is proposed for test selection in this paper.

提出了一种基于布尔逻辑运算的测试选择新方法。

However, thesemethods can return any value, so if the comparison operator is used in a Booleancontext (e.g., in the condition of an if statement), Python will call

但是这些方法也可以返回任何值，所以如果比较运算发生在布尔上下文中（例如 if 语句中的条件测试），Python会在返回值上调用函数

However, these methods can return any value, so if the comparison operator is used in a Boolean context (e.g., in the condition of an if statement), Python will call bool on the value to determine if the result is true or false.

但是这些方法也可以返回任何值，所以如果比较运算发生在布尔上下文中（例如 if 语句中的条件测试），Python会在返回值上调用函数 bool 确定返回值的真值。

With the generation of channel chip with cylindrical or conical difference between the Boolean operator to be, the user as long as the basic parameters can be input.

孔道的生成借助集成块与圆柱或者圆锥之间的布尔差运算得到，使用者只要输入基本参数就能得到。

Presents an algorithm for generating the sum of disjoint products by using binary decision diagram as well as certain ordering role of paths and Boolean algebra formulas.

利用二分决策图，同时采用道路排序技巧及布尔代数运算给出了求不交和的方法，它比单纯采用二分决策图的算法更简单，不交和的项数更少，从而得到一个求网络可靠度的有效算法。

This paper has also done the following work to mend the bugs in the former version: Breaking through the size limit of screen, therefore, it took only one time to form the reliability block diagram of a complex system consisting of many components.;Three kinds of life distributions have been applied: Gamma,Beta,Weibull; Interborough estimate has been done to system MTTF; Optimizing the calculation method of complex system consisting of several sub-systems; Improving calculation speed greatly.

本文对上一版软件的不足部分加以了改进：突破了屏幕大小的限制，对于一个由很多元件组成的复杂大系统，只需一次就可以构造出其可靠性框图；增加了三种元件的寿命分布型式：伽玛分布、贝塔分布和威布尔分布等；增加了对系统的平均寿命的区间估计；改进了计算由几个子系统组成的复杂大系统的计算方法；全面提高了运算速度。

In the first part, firstly, we introduce the nonstandard analysis theory simply. Using the axioms in nonstandard analysis, the nonstandard model is axiomatic approached, and the existence of nonstandard model and the consistence of axioms in nonstandard analysis are proved by the construction of nonstandard model. Secondly, some properties of nonstandard model are discussed, such as transitivity, Boolean properties, etc. Finally, Loeb measure spaceY,L

在第一部分里，首先对非标准分析理论进行了简单的概述，通过用非标准理论中的公理，给出了非标准模型，进而利用非标准模型的构造，证明了非标准模型的存在性和非标准模型中公理的一致性；其次，讨论了非标准模型的一些简单性质，如传递性，布尔代数运算性质等；最后，在内测度空间Y，

It used the inner product and discriminant rule to concentrate the row vectors of boolean matrix step by step, so the frequent item sets of transaction databases can be inducted quickly and intuitively.

即通过向量的内积运算和判别准则逐步浓缩布尔矩阵的行向量，从而快速、直观地归纳出事务数据库的频繁项集。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失