在基于速率反馈的网络流量控制系统中，信元在网络中的传播时延，特别是网络流量控制中的非线性大滞后，会带来极大的网络拥塞和数据丢失。

The propagation delay of cells, especially the nonlinear large-lag of communication may create congestion and loss of data in rate-based flow control in networks.

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其他的比例反馈讯号是由速率陀螺产生的。

Other proportional feedback signals are generated from rate gyros.

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对于A BR业务，AT M论坛最终确定其流量及拥塞控制是一种基于速率的闭环反馈控制机制，这使得A BR成为五种业务中唯一一种速率可控的业务。

Flow control of ABR service is identified by ATM forum as a rate-based close-looped feedback mechanism, which makes ABR service the only one whose rate can be controlled among the five services.

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