Quickly, with an occasional crackle of twigs, they threaded their way back to the clearing.
他们快手快脚折回空地，踩得树枝劈啪作响。
The device also allows the headquarters to track the exact location of the crews, so if a forest clearing spots a forest fire, the fire brigade can be quickly and precisely sent to the area.
这个设备，会让总部追踪清洁人员的正确位置，因此如果森林打扫点发生火灾，消防队就能立刻精确地前往火灾地点。
Main duties of relay protection are correctly and quickly judging and clearing system faults, which greatly derive voltage sags in a distribution system.
系统中大部分电压跌落由故障引起，快速可靠地判断并切除故障是继电保护的主要职责。
Main duties of relay protection are correctly and quickly judging and clearing system faults, which greatly derive voltage sags in a distribution system.
系统中大部分电压跌落由故障引起，快速可靠地判断并切除故障是继电保护的主要职责。
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