00559naa#a2200181#i#450# EN\\bibl\14014 20241202120219.1 1999-8775 20150331b2015####ek#y0engy0150####ca RUS RU Improving the design of the seal gaps in the flow of the pumping unit GTK-10-4. Journal article Bryansk Bryansk State Technical University 2015 5 с. Journal article local Perevezentsev Viktor Timofeevich Shilin Maksim Andreevich naukaru.ru