在表示尺寸的列中滚动，并选择 10 作为长度。

Scroll over to the size column and select 10 for the length.

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注意，如此时未指定文档长度，则打印预览时不会产生纵向滚动条。

Note that if the document length is not specified by this time, a scroll bar is not displayed during print preview.

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找一个6万行的日志文件，把里面的文本粘贴到Excel中去，然后把显示比例设为8%，向下滚动，并注意观察行的长度。

Take a 60,000 line log file, paste it into Excel, and set the zoom level to 8%. Scroll down and notice the pattern of line lengths.

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