00666naa#a2200181#i#450# EN\\bibl\6764 20240503182811.5 20211229b2021####ek#y0engy0150####ca RU FINITE ELEMENT ANALYSIS OF TOOLS FOR DEEP DRILLING TECHNOLOGY Conference article/thesis Bryansk Bryansk State Technical University 2021 5 с. Conference article/thesis local Инженерное дело. Техника в целом. Транспорт. 62 Проектирование. 302 bbk Turkina Natal'ya Rudol'fovna Chukarin Aleksandr bstu.editorum.ru