sand-model exercise

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