求翻译：则节点将推迟发送数据帧或者控制帧，直至媒质空闲时间超过分布式协调功能帧间间隔(DIFS，distributed coordination function inter-frame space),在DIFS后，节点将计算随机退避值[0,cw]，cw初始为CWmin。是什么意思？

The node will postpone sending a data frame or control frame, until the medium is idle longer than the distributed coordination function interframe gap (difs distributed coordination function inter-frame space), after the difs, the node will calculate a random backoff value [0, cw] , cw initial cwmi

The node will be postponed until a frame of data or control frames, noncommercially idle time until distributed coordination function inter-frame interval (DIFS distributed coordination function, inter-frame DIFS space), after the node will calculate random retreat value [ 0] and CW, for initial CW

The transfer carrier monitor mechanism by determines the current medium condition,

Nodes will delay sending a data frame or control frames until the medium has been idle for distributed coordination function interframe gap (DIFS,distributed coordination function inter-frame space), after the DIFS, node computes a random Backoff value [0,CW],CW initial CWmin.

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