- equal friction method of duct sizing
- nрасчёт воздуховодов по методу уравнивания потерь на трение, метод эквивалентных длин
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
equal friction method of duct sizing
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