该计划由一个控制流的架构，传输指令和反馈，位于流的末尾，经理。

The architecture of the scheme consists of a control stream, transmitting commands and feedback, and managers located at the end of the stream.

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Cache - Control报头允许客户机或服务器在请求或响应中传输各种指令。

The Cache-Control header allows a client or server to transmit a variety of directives in either requests or responses.

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简而言之，这个信道封装了两个flash.net.URLStream实例(指令和通道)，并支持长轮询(long - polling)传输。

In short, this channel encapsulates two flash.net.URLStream instances (command and tunnel) and supports long-polling transport.

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