你也可以得到一些很杂乱的图像，因为那些特征被隐藏在后面，或者我们没有很好可视化电脑，而看不到清晰的图像，图像是很直观的。
I mean, you can see that it can get a bit cluttered because maybe those features that are hidden behind, or maybe we have trouble seeing if we don't have a computer, that looks very readable.
这些部件可以是可视的，以便用于呈现UI，也可以是隐藏的，以便用于执行后台处理。
These widgets can be both visible for rendering the UI or hidden for performing background processing.
《卫报》及其数据博客每天都会发布新闻背后所隐藏的数据，它鼓励读者对这些数据进行可视化处理和研究。
The Guardian and its Datablog publishes raw data behind the news every day, and encourages readers to visualise and work with it.
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