SP语言是可移植、强类型、面向事件的离散系统模拟语言，是以PASCAL语言为基础进行模拟功能扩充而形成的。

SP is a portable, strongly-typed, event-oriented, discrete system simulation language, It is derived from PASCAL by adding some simulation functions.

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NHMDB是基于扩充关系数据模型的多媒介数据库系统，它以扩充关系为基础支持面向对象的主要特性。

NHMDB is a multimedia database system based on the extended relational data model and has the characteristics of object-oriented databases.

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UML能为面向对象系统的开发、软件生产的自动化和支持环境的建造提供一种丰富、严谨、扩充性强的表达方式。

UML can provide a rich, precise and easily-expanded expression for the development of object-oriented system, the automation of software production and the construction of supporting environment.

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