заняття на ящику з піском
sand model
terrain model exercise
sand ladder
sandtable (sand table)
sand table exercises (STEX)
wet sand-blasting
sand devil
sand particle
sand spreading
sand storm / sandstorm
sand whirl
blowing sand
drifting sand
wet sand-blasting apparatus
have sand in one's hair
sand happy
sand lot
sand map
sand rat
sand table
sand-lot problem
brisance sand test
model agreement
terrain model
exponential decay model
balanced force allocation model
battle focus requirements model
tow bar model
United States rifle, model 1903
engine-powered model
tunnel free-flight model testing
reference model