域之间的信息由超级路由节点来路由，域的内部的信息由普通路由节点和超级节点共同来路由。

The information among domains was transmitted by the super routing node, and the general routing node as well as super node would transmit the inner domain information.

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跨域身份验证适用于需要在包含相应资源的域的外部对某个标识进行身份验证的情况，然后将其传递到域的内部。

Cross domain authentication is when an identity is authenticated outside the domain that contains the resource and is then passed inside.

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递归允许在域的更高层定义策略，然后将它们强制到内部所有组件实现和交互。

Recursion allows defining policies higher up in a domain and enforce them on all the component implementations and interactions within.

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