宜都换流站的通道组织为：保护及安控通道、自动化通道、调度电话通道。
The channel organization of Yidu conversion station consists of protective and safety control channel, automation channel, dispatching telephone channel.
例如，可能有多个通信通道：邮件、电子邮件、电话等。
For example, there might be multiple communication channels: mail, email, phone, and so on.
这些规范可以使程序之间通过一个熟悉的通道进行通信，这与您选择电话或传真号的道理是一样的。
These conventions are used to allow programs to communicate with each other over a known channel in the same way as you would choose a phone or fax number.
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