卡片分类机中的一种接卡箱。
这种分类让参考，浏览，分类和分享卡片变得更容易。
These categories make it easy to reference, browse, sort, and share the CARDS.
写有信息的卡片，用它来将信息分类使之有序。
Card with information write on it, used to classify information into the correct order.
传统的图书馆分类卡片提供了3个查找特征，即作者，科目和标题。
Traditional library card catalogs provide lookup by three attributes: author, subject, and title.
传统的图书馆分类卡片提供了3个查找特征，即作者，科目和标题。
Traditional library card catalogs provide lookup by three attributes: author, subject, and title.
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