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Ice and Permafrost
3
Snow
3
(*ICE
2
*ICE
2
ARCTIC REGIONS
2
GLACIERS
2
GREENLAND
2
WELL LOGGING
2
(*GLACIERS
1
(*POLAR REGIONS
1
*PARTICLE SIZE
1
*PERMAFROST
1
*SNOW
1
AIR
1
ANTARCTIC REGIONS
1
BUBBLES
1
COMMUNICATION AND RADIO SYSTEMS
1
CONSTRUCTION
1
CORE SAMPLING
1
DENSITY)
1
DRILLING MACHINES
1
DRILLING)
1
DUST
1
ENVIRONMENTAL TESTS
1
Equipment and Methods
1
GEOPHYSICS
1
GLACIERS)
1
ICE
1
ICE ISLANDS
1
ICE)
1
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