如果边栏的宽度增加了，两个背景图像就会相互错开(因此称为“滑动门”)，更多地露出下面的图像，如图9所示。

If the width of the sidebar increases, the background images slide over each other (hence the name "sliding doors") revealing more and more of the lower image, seen in Figure 9.

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这个显示屏可供至多6个人一起工作；只需滑动手指，就可以移除层层肌肉；还可以放大或缩小器官的图像；并且还能用虚拟手术刀切开组织。

Up to six people can gather around the table and, with a swipe of a finger, remove layers of muscle, zoom in and out of organs and slice through tissue with a virtual knife.

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现在，我们将创建一些圆按钮来表示滑动栏包含多少张图像，和当前是哪一张。

Now we will create some radio buttons to indicate how many images does the slider contain and which is the active one.

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