有多种类型的桥，它们可以导入和导出数据库表、报告、模型、用户信息等的元数据。

There are various types of Bridges available for importing and exporting metadata for database tables, reports, models, user information, etc.

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改进的星型模式则在实际文档分析与关键词和类别之间引入一个桥接表(图8)。

The refined schema introduces a bridge table between the actual document analysis and the keywords with their categories (Figure 8).

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正面板上装有桥式电流表。

The front panel houses a bridge-current meter .

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