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Ice and Permafrost
5
Snow
5
*SNOW
4
ANTARCTIC REGIONS
4
BUILDINGS
3
LABOR
3
POLAR REGIONS
3
Structural Engineering and Building Technology
3
*FOUNDATIONS(STRUCTURES)
2
CONSTRUCTION
2
LIGHTING EQUIPMENT
2
MAINTENANCE
2
MCMURDO SOUND
2
MILITARY FACILITIES
2
POLAR REGIONS)
2
ROADS
2
STEEL
2
WALLS
2
WEIGHT
2
(*BUILDINGS
1
(*CIVIL ENGINEERING
1
(*POLAR REGIONS
1
(*SITE SELECTION
1
(*SNOW
1
(*UNDERGROUND STRUCTURES
1
*ANTARCTIC REGIONS)
1
*ARCTIC REGIONS
1
*ELECTRIC WIRE
1
*FASTENINGS
1
*HOUSING(DWELLINGS)
1
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