'The gravity type of this structure, like the Grand Coulee, uses its own weight to withstand the water pressure'
a dam
ENGINEERING: The gravity type of this structure, like the Grand Coulee, uses its own weight to withstand the water pressure
The gravity type of this structure, like the Grand Coulee, uses its own weight to withstand the water pressure
The gravity type of this structure, like the Grand Coulee, uses its own weight to withstand the water pressure
ENGINEERING
a dam
ENGINEERING