The breaksignal state occurs when a transmission is suspended and the line is placed in a break state (all low, no stop bit) until released.
中断信号状态发生于传输暂停时，此时线路会置于中断状态(全部都低，没有停止位元)直到其释放为止。
2
When charging below 0.33c (except in BREAK-IN) mode, the batteries may not produce a sufficient end-of-charge signal for the charger to terminate correctly.
The hprof tool produces a usage breakdown after the application exits, or when you signal your application with a kill -3 or by pressing Ctrl + break on Windows.