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Ice and Permafrost
2
Snow
2
(*HEATING
1
(*UNDERGROUND STRUCTURES
1
(*VENTILATION
1
*ANTARCTIC REGIONS)
1
*PUMPS
1
*SEA ICE
1
ANTARCTIC REGIONS
1
Air Condition
1
BARRACKS
1
BYRD STATION
1
Civil Engineering
1
DEEP FREEZE OPERATION
1
DENSITY
1
ELECTRIC MOTORS
1
ENGINEERING
1
FLOORS
1
Filters
1
Fittings & Vlvs
1
HEATING ELEMENTS
1
Heating
1
ICE
1
LIGHT
1
Lighting & Ventilating
1
MCMURDO SOUND
1
MILITARY FORCE LEVELS
1
Pipes
1
Pumps
1
QUARTERS
1
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