______is the process by which the position of the vessel at any moment is found by applying the last well determined position to the run that has been made since，using for this purpose the ship's course and the distance being those indicated by log．

______objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility.

______ moving rather quickly east expected 150 miles south of Cape Farewell 972 by 160000GMT.

______means the curve on the earth’s surface which cuts all the meridians at the same angle.

______ means a unit in which goods are totally enclosed by sufficient strong boundaries such as a freight container, a tank or a vehicle unit with fabric sides or tops.

______is the process by which the position of the vessel at any moment is found by applying the last well-determined position to the run that has been made since, using for this purpose the ship’s course and the distance being those indicated by log.

______ it rain tomorrow moring, the loading ______.

______is not contained in the NM Weekly.

______is the most visible signal of distress from a lifeboat at sea in the daytime.

______is not a process of weathering of the oil spilled in the sea water.

______ is not a process of weathering of the oil spilled in the sea water.