'From the French for "large box", it's a watertight structure allowing men to work underwater'
a caisson
ENGINEERING: From the French for large box, its a watertight structure allowing men to work underwater
From the French for "large box", it's a watertight structure allowing men to work underwater
From the French for "large box", it's a watertight structure allowing men to work underwater
ENGINEERING
a caisson
ENGINEERING