以下为句子列表：
英文: Abstract: A PDM framework with an open structure and strong scalability for data organization is presented.The data expression paradigm with a distributed,multi-tier C/S system configuration and an object oriented STEP based data model together with exten
中文: 文摘:产品数据管理系统的可扩展性和开放性是系统设计要考虑和解决的重要问题之一.在分析产品数据管理的需求基础上，参考STEP标准中对产品数据模型的描述和面向对象的建模方法，定义对象并建立基于对象的数据组织和管理机制，从而使系统具有一定的通用性、可扩展性和开放性.
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英文: And the proposition that data organization is the essential technology of digital library has been proposed.
中文: 提出了数字图书馆的关键技术是数据组织这一命题。
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英文: At present, data organization technology is approaching a great breakthrough, enable us to achieve great, essential advancement in developing digital library.
中文: 认为数据组织技术可能处于一个重大突破的前夕，突破这一技术，可以取得数字图书馆事业的重大发展。
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英文: Data Organization &Problem Perspective: How did the students organize the problem data? How did the students interpret the task? What perspective did they take?
中文: 资料组织&问题的可能发展：学生如何组织问题中的资料?学生如何解释任务?他们提出了什麽可能的发展?
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英文: The system analyses the following content such as the design demand, required function and data organization which can offer decision-making advice for the operation of the passenger special line and provide theoretic support for the evaluation of the con
中文: 系统分析设计要求、功能需求、数据组织等内容，为客运专线运营组织提供决策支持，为客运专线建设方案的评价提供理论支撑。
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