The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a system of blades spaced at uniform angles around the circumference of the runner of a hydroturbine. The energy of the moving water is directly converted to the energy of the rotating shaft of the turbine in the blading.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.