It's difficult to see the results of adding accessibility information without access to an at reader.
在不访问AT阅读器的情况下，很难看到添加可访问性信息的结果。
And some people, such as the visually impaired, cannot see CAPTCHA images at all, so this technique exhibits poor accessibility, and can even be illegal in some circumstances.
有些人，比如视觉障碍人士，根本就看不到captcha图像，所以这个技巧的适用性比较差，在某些情况下甚至是不合法的。
As you can see, from an accessibility standpoint, working with renderer-provided components is very similar to working with normal components.
如您所见，从可访问性的观点看，使用呈现程序提供的组件非常类似于使用普通的组件。
In this section you'll see how we used CSS to style for accessibility.
在本节中，您将看到我们如何使用CSS提高可访问性。
To see the inclusion principle in practice, let's apply it to that list of objections to accessibility.
现在来看看如何将包容性原理融入实践。
Here you can customize the pitch of the system bell. For further customization of the bell, see the "Accessibility" control module.
在这里您可以定制系统铃声的音调。要更好地定制铃声，请看“可用性”控制模块。
To validate your document for accessibility, see Testing your site.
要对文档进行辅助功能验证，请参见测试站点。
For more information about accessibility levels, see access Modifiers.
如需存取范围层级的详细资讯，请参阅存取修饰词。
For more information about accessibility levels, see access Modifiers.
如需存取范围层级的详细资讯，请参阅存取修饰词。
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