By using（）system a ship can send a distress message and know with certainty it will be received.

Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.

Radio beacon can be activated（）in case of distress.

Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.

Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.

Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.

The rescue coordination center may（）on stations which interfere with traffic.

We consider（）send a helicopter with medical facilities to the distress area.

At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.

Ship-to-ship distress alerting should be conducted by（）.