전기식엔진텔리그래프

Electric Engine Telegraph

전기식온도조절기

Electric Thermostat

전기식조타텔리그래프

Electric Steering Telegraph

전기식타각지시기

Electric Rudder Angle Indicator

전기식프로펠러회전계

Electric Propeller Shaft Revolution Indicator

전기식흘수계

Electric Draft Gauge

전기안전등

Electric Safety Lamp

전기용접

Electric Welding

전기용접봉

Welding Rod

전기저항용접

Electric Resisrance Welding