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COMPRESSED AIR
Ice and Permafrost
7
Snow
7
FEASIBILITY STUDIES
3
*PERMAFROST
2
*SEA ICE
2
ALASKA
2
CARBON DIOXIDE
2
DRILLING
2
DRILLS
2
EXCAVATION
2
GREAT LAKES
2
Marine Engineering
2
REMOVAL
2
(*ICE
1
(*ICEBREAKERS
1
(*SEA ICE
1
*BURSTING CHARGES
1
*CARGO SHIPS
1
*DEICING SYSTEMS
1
*FRACTURE(MECHANICS)
1
*FREEZING
1
*ICEBREAKERS
1
*MARINE TRANSPORTATION
1
*NAVIGATIONAL AIDS
1
*SEISMOLOGICAL STATIONS
1
*SOILS
1
*freezing
1
*soils
1
AIR CUSHION VEHICLES
1
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