域为业务对象提供服务检索和维护、封装业务逻辑、定位以及与对象和服务相关联的格式。
The domain offers retrieval and maintenance services for the business object, encapsulating business logic, location, and the format associated with its objects and services.
视频的自动标注是视频检索系统中的重要模块，而字幕的提取与定位则是视频标注的重要步骤。
The automatic video annotation is a key module of the video indexing and retrieval system, and the extraction and location of captions are important steps for video annotation.
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