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Ice and Permafrost
2
Snow
2
*ARCTIC REGIONS
1
*CARBON DIOXIDE
1
*ICE
1
*PROJECTILES
1
*Subarctic regions
1
AIR DROP OPERATIONS
1
ANTISUBMARINE WARFARE
1
ARCTIC OCEAN
1
ARCTIC REGIONS
1
Ammunition and Explosives
1
Atmospheric Physics
1
BLUNT BODIES
1
COMPUTER PROGRAMS
1
CONFIGURATIONS
1
CONICAL BODIES
1
CORE SAMPLING
1
CYLINDRICAL BODIES
1
DIGITAL COMPUTERS
1
EXCHANGE
1
FRACTURE(MECHANICS)
1
GUN LAUNCHERS
1
HYDROPHONES
1
Hydrology
1
IMPACT
1
LABORATORIES
1
Limnology and Potamology
1
MATHEMATICAL MODELS
1
MEASUREMENT
1
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