Double-Bottom

Warehouse Withdrawal for Transportation (WDT)Allows merchandise that has been withdrawn from a bonded warehouse at one port to be transported in bond to another port, where a superseding entry will be filed.

Auxiliary Management Information System.

Deals,battens an Boards.

The next grade above the beginning grade of ordinary seaman in the deck crew.

A machinery device, which is applied for clipping and receiving/rending the electric cables during cable-laying under water.

A recording pressure-tube anemometer in which the wind scale of the float manometer has been made linear by the use of springs, i.e. Dines anemometer.

Autonomous Underwater Vehicle.

Any Safe Port in the World

The period of time excluding the first and last days.

When a perfect gas flows through a throttling with constant inlet and outlet pressures, the temperature of the gas is the same before and after it flows through the throttling. There is a temperature drop, however, during the passage of gas through the th ...

Tons Per Inch (Immersion)

A winch designed specifically for lowering、retaining and hoisting an accommodation ladder, and having a rope storage drum.

Association Internationale de Signalisation Maritime (see also IALA).

Auxiliary

Combined supply and anchor-handling ship. Seismic ship: Conducts seismic surveys to map geological structures beneath the sea bed.

A crane with a cantilever which is incapable of luffing. The cargo hook is fixed on the out end of the cantilever or hanged on a movable carriage along it.

An air operated device for hoisting or pulling. Similar to a slusher or tugger or An engine for handling drafts of cargo secured on deck and fitted with drums on a horizontal axle.

An optical, ultrasonic, or infrared sensor that turns room lights on when they detect a person's presence and off after the space is vacated.

Cargo banned by general cargo workers for some reason. This ban could be because the cargo is dangerous or hazardous to health.