数据比较：您可以在使用叠加功能的同时滚动、放大图像和设置焦点。

Data compare: You can simultaneously scroll, enlarge the images and set focus while using the overlay functionality.

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这个软件可以用来解决那些模型已知，详细结果却未知的问题；滚动条允许用户设置他们希望解决的问题的参数值。

The software works for problems whose form is know but whose particulars aren't; slider bars allow users to set the values for which they want the problems solved.

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使用 PDO::ATTR_CURSOR 属性将游标设置为可滚动游标

Set the cursor to be a scrollable cursor using the PDO::ATTR_CURSOR attribute

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