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中文名称
英文名称
- 过电流 Over current
- 过(欠)电压 Over (under) voltage
- 操作小母线 Operating miniature bus
- 过流保护回路 Over-current protective circuit
- 出线盒 Outlet box
- 油变阻器 Oil immersed rheostat
- 过电流继电器 Over-current relay
- 过电压继电器 Over-voltage relay
- 工作电源分合闸 On and off of working electric source
- 开或闭超扭矩保护 Over-torque protection during opening and closing valve
- 欧姆表 Ohmmeter
- 过载电流表 Overload ammeter
- 氧化膜避雷器 Oxide film arrester
- 油浸自冷感应调压器 Oil-immersed self-cooled induction voltage regulator
- 耐油橡胶管 Oil-proof rubber tubes