open-and-shut controller open arc open arc welding open bearing open-belt drive open bridge open bubble open burning open-butt joint open car opencast opencast mining open cathode open-cell foam open chain open channel open-channel hydraulics open circuit open circuit battery open-circuit characteristic |
open-and-shut controller двупозиционен автоматичен регулатор регулатор по принципа включено-изключено Търсената дума е намерена |