文中针对分布参数结构特性设计了滤波增广结构，对增广系统设计带观测器的状态反馈构成控制器。

The Parallel Filtering Control is brought forward in this paper: a filter designed for the structure is used to augment the system, based on which the observer is built for state feedback.

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研究数据库的设计内容，主要包括数据库的结构特性设计、数据库的行为特性设计、数据库的物理模式设计。

Research contents of database design include database structure characteristics design, database behavior characteristics design and database physical model design.

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这是因为流设计人员是使用升级来控制分级结构中的特性值的设置。

This is because a flow designer USES promotion to control the setting of a property value in a hierarchical composition.

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