Special vocabulary of hydropower industry sublanguage in the aspect of stratification

The article discusses the vocabulary of the Russian hydropower industry sublanguage from the point of the stratificational terminology, reveals and characterizes the variety of terminological vocabulary (terms, preterms, determs, quasiterms, nomens, eponyms) as well as special names, operating in the sublanguage lowercase (professional slang, deprofessional slang, quasiprofessional slang, professional jargon). The author concludes that the special vocabulary of the hydropower industry sublanguage is on its high linguistic development stage.