The abstract system that an author constructs exists only in his mind, and the physical manifestation — the book — is only a convenient means of storage and distribution.
作者建造的抽象系统仅仅存在于他的脑海里，它的物理表现(书)仅仅是为了方便的保存和发行的一种手段。
An automated book retrieval system will reduce the amount of space needed for book storage. The library's two million volumes will be stored on two storeys above ground and two storeys below.
自动化图书检索系统大大减小了书籍的贮存空间，馆内二百万册的藏书被存放于两层地上空间和两层地下空间。
Book reading electronic machine, edition system, storage medium and information providing system.
书籍朗读电子机器，编辑系统，存储媒体，及信息提供系统。
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