They could, for example, fill the gaps in a carrier ship that is merely a skeleton framework, or they could be secured in the tunnel between the hulls of a catamaran, and so become parts of the hull of the sea-going ship.
Umzekelo bungavala izithuba kwinqanawa eziphathayo eziqalayo okanye bangakhuselwa kwitonela phakathi kwesiqu senqanawa esidibeneyo kwaye babe yindawo kwisiqu senqanawa ehamba elwandle