spillway crest gate spillway culvert spillway dam spillway elevation spillway face spillway face slab spillway-foundation block spillway gate spillway level spillway lip spillway opening spillway pier spillway tunnel spillway work spin spin-allowed spin angular momentum spin chuck spin degeneracy spindel breaker |
spillway crest gate хидр. повърхностен затвор на преливник Търсената дума е намерена |