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(Buoyant (Floating (Mobile (Non-propelled (Pontoon-type, Ship-shaped),…
(Buoyant (Floating, Bottom-laying, Planning, Airlifted), Self-propelled (Displacement, Planning, Air-lifted), Stationary (Bottom Founded, Hybrid), Redeployable (Floating, Hybrid), Portable (Floating), Non-buoyant (Bottom-founded))