除了按内容查询之外，还可以按元数据关键字，比如文件名、描述和创建日期来查找文件。
In addition to query by content, I can look for images by metadata keywords, such as filename, description, and creation date.
取而代之的是，只有包含关于数据的位置和长度的信息的描述符被追加到了套接字缓冲区。
Instead, only descriptors with information about the location and length of the data are appended to the socket buffer.
从技术的角度来看，倒排索引用于存储文档中出现的关键字，并且支持搜索，它是一种广为熟悉并且精确描述的数据结构。
From a technical perspective, the inverted index, used to store keywords that appear in documents and enable searches, is a well-known and well-described data structure.
传统的图像索引方法从图像数据库中按照关键字或号码，和按分类描述来检索引图像。
In traditional method of image retrieval searches images according to keys, number and sort describe from image database.
现有的许多多媒体数据库系统只提供了基于媒体描述关键字的检索和查询，却忽略了另一个重要的信息来源——媒体的内容。
In many current multimedia database systems, query or retrieval is only based on descriptive KeyWords of media, it ignores another important information resource the content of media.
现有的许多多媒体数据库系统只提供了基于媒体描述关键字的检索和查询，却忽略了另一个重要的信息来源——媒体的内容。
In many current multimedia database systems, query or retrieval is only based on descriptive KeyWords of media, it ignores another important information resource the content of media.
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