This irreflexivity can be used to set up an equivalence relation—that is, for Key s a and b , if comp(a, b) is false and comp(b, a) is false , then a and b must be equivalent.
这个反自反性质可以用来建立一个等价关系(equivalence relation)—也就是，对于Keysa和b来说，如果comp(a,b)为false并且comp(b,a)也为false，那么我们就说a和b是等价的。
The U. S. , for example, has B-2, but B-52, which is a veteran now, is still the most widely and frequently used bomber.
就像美国虽然有B-2轰炸机，但列装数量最多、使用频率最高的仍然是老骥伏枥的B-52。
Since the B/S architecture has the advantage of multi-platform and expansibility, a growing number of data analyzing systems make use of B/S pattern for their implementation.
由于B／S模式具有跨平台、易扩展等显著的优点，越来越多的数据分析系统采用B／S模式来实现。
Graduated from the University of California, San Diego in the year 2000, with a B. S. in Psychology, a B. A. in Economics, and a minor in Studio Art.
美国加州大学圣地牙哥分校(2000年毕业)，主修经济学及心理学，副修艺术。
This paper explores the design pattern and its operation logic structure of B/S system, through the research on application development framework of a B/S mode system based on . NET platform.
NET平台下的B/S结构软件系统开发框架的研究，对框架化的B/S系统设计模式和其中的业务逻辑组织进行了详细的论述，并介绍了该开发框架在一个校务管理系统的实际应用。
A system based on B/S to develop E-government applications. was proposed. The quality of the qualified E-government management system was designed and implemented based on a B/S construction system.
设计并实现了一个采用基于B/S架构体系来开发的资质资格信息管理电子政务系统，并对系统结构、各功能模块和数据库以及关键技术的实现进行了详细的描述。
A system based on B/S to develop E-government applications. was proposed. The quality of the qualified E-government management system was designed and implemented based on a B/S construction system.
设计并实现了一个采用基于B/S架构体系来开发的资质资格信息管理电子政务系统，并对系统结构、各功能模块和数据库以及关键技术的实现进行了详细的描述。
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