紧急转换命令 ECO EmergencyChangeoverOrder ; ECO

紧急转换消息 emergency changeover message ; ECM

电源紧急转换 Power Failure Transfer

紧急转换设备 emergency throw-over equipment

紧急转换报文 ECM EmergencyChangeoverMessage

紧急转换能力 emergency transfer capability

紧急转换确认 emergency changeover acknowledgement

紧急操纵转换开关 commutator for emergency manoeuvres