服务描述可以包括各种形式的标记，以将一个服务实例与规定相同服务规范的其他实例区分开来。
A service description can include various forms of tags to distinguish one service instance from others enacting the same service specification.
由于该示例RESTAPI将初始地支持XML，所以有必要定义这种输出类型，指定相关的响应头并将之标记为默认。
Since this example REST API will initially support XML, it's necessary to define this output type, specify the relevant response headers and mark it as default.
上面的描述符文件中的 <dep:XXX>标记与此约定相对应。
The <dep:XXX> tags in the descriptor file above correspond to this convention.
当场景中的任何特定相机进行渲染时，你可以设定清除标记以清除缓冲区信息的不同集合。
As any particular Camera in your scene renders its view, you can set the clear Flags to clear different collections of the buffer information.
当场景中的任何特定相机进行渲染时，你可以设定清除标记以清除缓冲区信息的不同集合。
As any particular Camera in your scene renders its view, you can set the clear Flags to clear different collections of the buffer information.
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