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*ANTARCTIC REGIONS
GLACIERS
Ice and Permafrost
RUNWAYS
2
Snow
2
*CARGO
1
*CONSTRUCTION MATERIALS
1
*ICE
1
*LANDING FIELDS
1
*TRANSPORT AIRCRAFT
1
ABLATION
1
ACCESS
1
AIRCRAFT
1
COLD REGIONS
1
Construction Equipment
1
DELIVERY
1
FUELS
1
ICE
1
LAND ICE
1
LIMITATIONS
1
LOW COSTS
1
MACHINES
1
MILITARY REQUIREMENTS
1
Materials & Supplies
1
PATTERNS
1
PHYSICAL PROPERTIES
1
POLAR CAP
1
POLAR REGIONS
1
RATES
1
ROSS SEA
1
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