#marine engineering

• Sinking device — A person who performs dives or a technical device designed to introduce, maintain, or lower an object to a great depth in a liquid medium. As an adjective, it refers to a structure, mechanism, or animal behavior that promotes or achieves deep immersion under water.
• Outer harbor — An outer water basin located at the entrance of a maritime or river port, protected by breakwaters and jetties, intended for the temporary shelter of vessels, execution of turning maneuvers, or waiting for docking permission. This structural element plays a critical role in naval safety, mitigating the energy of large waves and allowing the controlled passage of ships into the inner unloading basins.
• Aviso — A small or medium-sized military warship, characterized by high speed and enhanced maneuverability, used in the past primarily for transmitting orders, reconnaissance, escort, liaison, or coastal patrolling missions. In modern fleets, its structural role has been taken over by corvettes or light frigates, but the term continues to designate fast vessels destined for maritime surveillance.
• Aviso — A small or medium-sized military warship, characterized by high speed and enhanced maneuverability, used in the past primarily for transmitting orders, reconnaissance, escort, liaison, or coastal patrolling missions. In modern fleets, its structural role has been taken over by corvettes or light frigates, but the term continues to designate fast vessels destined for maritime surveillance.