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ANTARCTIC REGIONS
ARCTIC REGIONS
4
Marine Engineering
4
Ice and Permafrost
3
Snow
3
*ICEBREAKERS
2
COAST GUARD
2
DIESEL ENGINES
2
ICE
2
SEA ICE
2
USSR
2
*ARCTIC REGIONS
1
*COAST GUARD SHIPS
1
*FOREIGN TECHNOLOGY
1
*ICE ISLANDS
1
*ICE MECHANICS
1
*ICEBERGS
1
*INFORMATION EXCHANGE
1
*MARINE NUCLEAR PROPULSION
1
*NORTH SEA
1
*OFFSHORE STRUCTURES
1
*RECONNAISSANCE
1
*SHIPS
1
*STRUCTURAL RESPONSE
1
ACQUISITION
1
ALASKA
1
ANGLES
1
BLUNT BODIES
1
COAST GUARD RESEARCH
1
COATINGS
1
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