这意味着如果没有进度条或是其他指示器，用户会觉得你的程序跑得很慢。
This means that without progress bars or some other indicators your application will feel slower to your users.
井研究此给予用户如进度指示器的视觉反馈的重要性和记录。
The importance of giving users visual feedback, such as progress indicators, has been well researched and documented.
当进度指示器达到100%并消失时，便表示分析已经执行完毕。
You will know your analysis has completed when the progress indicator reaches 100% and disappears.
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