固定式电动起重机

forming electric connections by SCREWING

electric hoist

fibre optic cable containing electric conductor

dental electric drill car

electroplating【化工】;galvanization【化工】;electric plating【化工】

electroslag remelting plant (electroslag refining plant) heating by electric arc

ROTOTROLS used for controlling electric machines

casting out nines (casting-out-nines) error detection in electric digital computers