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(*UNDERGROUND STRUCTURES
BYRD STATION
3
*ANTARCTIC REGIONS)
2
Air Condition
2
Heating
2
Ice and Permafrost
2
Lighting & Ventilating
2
Snow
2
(*CONSTRUCTION
1
(*HEATING
1
(*VENTILATION
1
*POLAR REGIONS)
1
*TUNNELS
1
*UNDERSNOW CAMPS
1
ARCTIC REGIONS)
1
ATMOSPHERIC TEMPERATURE
1
BUILDINGS
1
COOLING
1
COSTS
1
Civil Engineering
1
DEFORMATION
1
DRILLS
1
EFFICIENCY
1
HEAT SINKS
1
HEAT TRANSFER
1
ICE
1
LABOR
1
MACHINES
1
MAINTENANCE
1
MAINTENANCE EQUIPMENT
1
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