单项选择题
A.maximum counter weight required B.minimum horsepower required C.hoist rope strength D.allowable load
A.raised flange at the main deck edge B.riveted crack arrester strap on all-welded ships C.riveting pattern most commonly used in ship construction D.row of plating nearest the keel
A.reduce the rolling of the vessel B.serve as the vessel's main strength member C.add strength to the bilge D.protect the vessel's hull when alongside a dock