定位这个故障后，电路识别开路电线，允许断开和修复正常的电缆端。
After locating this fault, the circuit identifies the open wire and allows you to open and repair the correct cable end.
定位这个故障后，电路识别开路电线，允许断开和修复正常的电缆端。
After locating this fault, the circuit identifies the open wire and allows you to open and repair the correct cable end.
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