Page Numbers are a problem for e-books, since the number of words on a virtual page depends on the size of the screen and type.

无法显示页码则是困扰电子书的另一个问题。在虚拟页面上，每页呈现的字数取决于屏幕的大小和字体类型。

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The Explorer pane provides filters for narrowing your search results by attributes such as length, screen type, resolution, and source.

浏览窗格根据大小、屏幕类型、分辨率及来源等属性提供了过滤功能来缩小结果范围。

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But a new type of touch screen could be less expensive and more durable.

但是一种新的触屏可能比较便宜，而且不容易毁坏。

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Designed with smartphone users in mind, this interface combines touch-type and big screen functionality, creating faster editing and uploading to other devices and social media sites.

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Paralysed people could move a cursor around a screen and type messages.

ECONOMIST: MONITOR

Users can quickly type using the on-screen keyboard and navigate through the slate's features with the highly responsive capacitive multi-touch screen, or write naturally on the screen using an electromagnetic pen, making it easy to take meeting notes, create documents and reports in Microsoft Office 2010, or browse online.

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