00743naa#a2200193#i#450# EN\\bibl\57382 20241123205729.6 2949-2440 20230228b2023####ek#y0engy0150####ca RU Theoretical aspects of principles of analyzing jet pumping stations and methods of their improving Journal article Astrakhan Astrakhan State Technical University 2023 7 с. Journal article local Устройства, работающие на других газах (кроме воздуха). 621.692 Aleksanyan Igor Yuryevich Nugmanov Albert Hamed-Harisovich Pokoptsev Alexei Alexeevich vestnik.astu.org