The router is connected to at least two networks and decides which way to send each information packet based on its current understanding of the state of the networks it is connected to.

路由器至少连接至两个网络，并根据对当前所连网络状况的了解确定报文的发送方式。

youdao

For now, the new two-way sync feature only works with Twitter, though the company notes that it will soon support other networks as well.

Myspace称很快将推出和更多社交网站同步更新的功能，但是目前只支持和twitter的双向同步。

youdao

Two Way Automatic communication System (TWACS) is a new valuable communication technology for distribution networks, which has special of modulation and demodulation.

双向工频通信技术(TWACS)是一种基于电力配电网络的新型通信技术，具有独特的调制解调机理。

youdao

It resulted in the Space for Science project, which aims to facilitate scientific and technical cooperation in South-East Europe by providing virtual, collaborative and education services to academic and higher education institutions through fast academic networks and two-way satellite channels.

UNESCO: Communication and Information

ZigBee is a protocol that works on the 802.15.4 spectrum (WiFi is also known as 802.11 for its slice of spectrum.) As a short-range, low-power protocol, ZigBee is suited for two-way communications among small devices, and can be used to build self-organizing networks of devices.

FORBES: The Wireless Boom That Won't Need Us

Those networks are more geared toward two-way communications, whereas Tumblr is more one-directional, according to Forrester analyst Zach Hofer-Shall.

FORBES: Do You Need A Tumblr?