布尔的

Plane graphics Boolean operation of the plane and graphics, poor pay and make object-oriented programming design.

平面图形布尔运算，对平面图形的并、交和差做出面向对象的程序设计。

Recently, constructing entity based on computer aided modeling is one of the most efficient and most widely used method, and it has proved that Boolean Operation plays a very important role in such constructing process.

目前，通过计算机辅助建模生成物体是最高效也是最广泛应用的方法，布尔运算在建模过程中的作用显得尤为重要。

It will support the Boolean Operation and will be the key for second design of the STL models, because of the STL models has strict TOP information.

由于STL文件格式具有严格的拓扑信息，这正为布尔运算提供了支持，同时也是STL文件二次设计的关键。

Firstly, The paper introduce two filtering model --Boolean model and Vector Space model.

本文在略述了信息过滤技术的产生背景后，介绍了两种比较常用的信息过滤模型--布尔逻辑模型和向量空间模型。

After the discussion of the organization and data access of the data,the paper presents some pop kinds of information retrieve models nowadays,such as Boolean logical model,Vector Space retrieve model and Probability retrieve model.

在讨论了分布式环境中的数据组织和访问后，本文又具体讨论了现今几种主要的信息检索模型：布尔逻辑模型，向量空间模型，以及概率模型等。

The article will mine Data-Item set compression to a Boolean Vector Matrix.The algorithm only needs to scan the database one time and rational use of data storage structure so that it would not generate a large number of candidate sets.

将挖掘的数据事务集压缩到一个布尔型向量矩阵中，只需扫描数据库一次，合理利用数据存储结构，且不会产生大量的候选集。

Generalized ε- correlation Immune Boolean Vector Functions ...

定理1 告诉我们布尔向量函数具有m 阶广义ε相关免疫性的一个必要条件是它各分量函数的。。。。。

Chapter six is one focus of this paper, mainly studies the constructions of Boolean functions.

第六章也是本文的一个中心，重点研究了布尔函数的构造。

Shown below is an example of each of the boolean operations that can be

地区。下面显示的是一个布尔操作的每一个例子，可以

There is an extensive literature on the index theory of Boolean matrices.

布尔矩阵的指数理论已经得到了广泛的研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。