They make clever use of the linear nature of both scrollbars and textual information to provide location information about the locations of selections, highlights, and potentially many other attributes of formatted or unformatted text.

• 这种滚动条巧妙地使用滚动条和文本信息的线性性质来提供有关选择、突出显示，以及格式化或者非格式化文本很多其他可能属性的位置信息。