00673nam#a2200169#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\book\2111 20210920085956.1 20180411d2018####ek#y0engy0150####ca RUS RU Seals of mobile connections (UPS) and other details for a hydraulic drive of agricultural machinery with application of polymeric materials Textbook Ekaterinburg Ural State Agrarian University 2018 116 с. Textbook local Общие вопросы машиностроения. 55.01 grnti Nagorskih Valentin Semenovich usau.editorum.ru