піщаний вихор
whirl distribution
whirl core
whirl decay
whirl filament
dust whirl
line of whirl
whirl
sand ladder
sandtable (sand table)
sand table exercises (STEX)
wet sand-blasting
sand devil
sand particle
sand spreading
sand storm / sandstorm
blowing sand
drifting sand
wet sand-blasting apparatus
have sand in one's hair
sand happy
sand lot
sand map
sand model
sand rat
sand table
sand-lot problem
sand-model exercise
brisance sand test