浏览器越来越在安装时就支持SVG，无需外部插件或库。
Browsers increasingly support SVG as installed, without external plugins or libraries.
可以使用这个提供者执行简单的测试安装，因为它不需要数据库或外部源等任何其他软件。
This provider can be used to serve simple test installs as it doesn't require any other software like databases or external sources.
例如，反射经常在持续存储对象为数据库、XML或其它外部格式的框架中使用。
For example, reflection is often used in frameworks that persist objects to databases, XML, or other external formats.
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