Two-way transports can send and receive messages using the same channel.

双向传输可以使用同一个通道发送和接收消息。

youdao

Thus, distinguishes between two kinds of battery electrolyte "fixed" way and provide oxygen to the cathode channel differently, thus the performance of the two kinds of battery also.

由此看出，两种电池的区别就在于电解液的“固定”方式和提供氧气到达负极通道的方式有所不同，因而两种电池的性能也也。

youdao

One way is what is called two-channel authentication, using something other than the computer - most likely a cellphone - as part of the log-on procedure.

一种方法是所谓的双通道验证，使用的不是电脑-最有可能是手机-作为登录程序。

youdao

Opening up a two-way communication channel with customers is vital for building a brand for your business in Web 2.0.

WSJ: Creating a Brand for a New Business

Whereas traditional systems require the use of one or two dedicated channels per user every time there is a two-way communications, trunked systems automatically select the voice channel that a user may talk on every time he transmits.

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And the relationship aspect of a YouTube channel, he says, is a two-way street.

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