output blocking factor 输出成块因子
The final count of blocking processes is output from this call.
阻塞进程的最后计数将从这个调用中输出。
If your traceroute results in failure, the output can lead you in the right direction-namely, which server or network equipment may be blocking your access.
如果您的traceroute导致错误，输出结果可以引导您找到问题所在—即哪个服务器或网络设备可能在阻止您的访问。
The blocking matrix of Figure 1-14 allows the connection of a single input to any single output. Therefore, only one signal path is active at any given time.
图1 14中的块矩阵可以将单路输入连接到任意单路输出，因此在任意时间只能有一个信号路径是活动的。
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