00601naa#a2200193#i#450# EN\\bibl\2655 20250124162335.5 1992-5980 20140630b2014####ek#y0engy0150####ca RUS RU Servomotor parameter effect on dynamic properties of twist drilling deephole machining system Journal article rostov on don Don state technical University 2014 0 с. Journal article local Turkin Ilya Andreevich Zakovorotnyy Vilor Lapshin Viktor Petrovich naukaru.ru