Reducerlar ko'pincha quvurlarni loyihalovchilar to'g'ri quvurlar diametrini kamaytirmoqchi bo'lganda ishlatiladi. Standart reducerlarning ikkita uslubi mavjud: Konsentrik – umumiy markaz chizig'iga ega; Eccentrik reducer – ofset markaz chiziqlariga egaI'm sorry, but it seems there is no text provided for translation. Please provide the text you would like to have translated into Uzbek.