A vessel on the sea often refers to a ship or boat on the ocean. By definition a vessel is a craft designed for water transportation
Yes. It is a vessel for the 100 trillion cells and the sea of "sea-like" fluid that makes your body.
In a storm a sea anchor can help a vessel from drifting off course. It will keep the bow in the wind and slow the speed of the vessel.
A vessel at sea is said to be underway.
A Ship
BATHYSPHERE
what are sea-going vessels
a ship
no
Continental Margin
A submarine is a sea-going vessel, both on the surface and under the water.
If, at the same time the weather is bad, with head winds, the ship's resistance may increase compared to operating in calm weather conditions. When determining the necessary engine power, it is normal practice to add an extra power margin, the so-called sea margin, which is traditionally about 15% of the propeller design power.