Прочитайте текст и заполните пропуски подходящими по смыслу словами.
This is the widest field of engineering, concerned with systems and devices that use 1_______ power and signals. Among the most 2_______ subjects in the field are electric power and machinery, electronic circuits, control systems, computer design, superconductors, solid-state electronics, robotics, lasers, 3_______, consumer electronics, and fibre optics.
Electrical engineering can be divided into four 4_______ branches: electric power and machinery, electronics, communications and control, and computers.
electric
important
radar
main