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Ammunition and Explosives
5
Ice and Permafrost
5
Snow
5
SNOW
4
*RESIDUES
3
COLD REGIONS
3
FIRING TESTS(ORDNANCE)
3
ICE
3
MILITARY FACILITIES
3
SAMPLING
3
*ARCTIC REGIONS
2
*PROPELLANTS
2
*SNOW
2
*TUNNELING
2
ANTARCTIC REGIONS
2
Civil Engineering
2
ENERGETIC PROPERTIES
2
ENGINEERING
2
INSTRUMENTATION
2
LOW TEMPERATURE
2
MEASUREMENT
2
MONITORING
2
Marine Engineering
2
Meteorology
2
QUALITY ASSURANCE
2
RESIDUES
2
SOILS
2
STATIONS
2
Solid Wastes Pollution and Control
2
*AMMUNITION
1
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