... возможна идентификация его неисправности - заклинивание шарошки, поломка лопастей, опор и др. The scientific work is devoted to the phenomenon of the generation of electric currents in rock destruction by drilling. It’s may be a promising new information channel of communication "well bottom-surface". The possibility of determining the value of speedrock-breaking tool by spectra of electric current for various geological,...

Отсортировано по релевантности | Сортировать по дате