（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.

When the wave period and the apparent rolling period are the same（）.

Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.

The mean draft of a ship is the draft（）.

Shipboard Emergency Drills must be carried out at least（）on board cargo ship.

Fog is likely to occur when there is little difference between the dew point and the（）.

Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

The helm command PORT TWENTY means（）.

According to the relevant regulation, lifeboat should be powered by（）.

Berthing means bringing a vessel to her berth until（）.