The application displays objects as discrete lines of text in the box, and the scrollbar moves them up or down.

应用程序在框中以离散的文本行形式显示对象，可以通过滚动条上下移动。

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This text will discuss two forms of the index number function with the property of continuous and discrete, and the implication in the actual problems.

本文将讨论指数函数连续和离散两种形式及其在实际问题中的含意。

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