Normal positions: running condition, hot standby mode, cold standby mode, maintenance condition, and trolley operation conditions, etc.
如错误操作有：运行状态拉合小车、热备用状态合地刀（挂地线）、检修状态合小车等。
Normal positions: running condition, hot standby mode, cold standby mode, maintenance condition, and trolley operation conditions, etc.
如错误操作有：运行状态拉合小车、热备用状态合地刀（挂地线）、检修状态合小车等。
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