它的目的是围绕书的逻辑，也就是说，在您的图书馆单一入口，可能对应于实际的多种格式的电子书文件的概念。
It is designed around the concept of the logical book, i. e., a single entry in your library that may correspond to actual e-book files in several formats.
它的目的是围绕书的逻辑，也就是说，在您的图书馆单一入口，可能对应于实际的多种格式的电子书文件的概念。
It is designed around the concept of the logical book, i. e., a single entry in your library that may correspond to actual e-book files in several formats.
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