However, in case the connection is source bottlenecked or the service is burst, ABR congest control plus open loop control can do a better job than close loop control.

但在拥塞发生在信源处或对突发性业务进行控制的情况下，添加开环控制的ABR拥塞控制可以获得比闭环控制更佳的作用。

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However, in case the connection is source bottlenecked or the service is burst, ABR congest control plus open loop control can do a better job than close loop control.

但在拥塞发生在信源处或对突发性业务进行控制的情况下，添加开环控制的ABR拥塞控制可以获得比闭环控制更佳的作用。

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