双向传播指存在着反馈和互动机制的传播活动。在双向传播过程中，传受双方相互交流和共享信息，保持着相互影响和相互作用的关系。
基于电子杂志广告最具特质的双向交互传播模式，受众的地位有了前所未有地提升，电子杂志广告必将成为一种主要的广告形式之一。
Because of the bidirectional communication mode of E-journal advertisement, the status of the audience is upgraded, and it will surely become a main form of advertisement.
从暂态电压和电流在配电网中传播的角度，分析了双向工频通信信号在配电网中的传输特性。
From the viewpoint of propagation of transient voltage and current in distribution network, the transfer characteristics of two-way power frequency signals in distribution network are analyzed.
如果找到的路由不是纯双向链路，则源节点还需要将RACK报文沿找到的回路路由循环一次，通过RACK的传播来通知中间节点建立起相应的路由。
If it is not a pure two-way path which includes some asymmetric links, the source needs to spread the RACK along the route and inform the route-related nodes to establish the corresponding route.
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