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Hydrology
Limnology and Potamology
4
Ice and Permafrost
3
Snow
3
*ICE
2
*RIVERS
2
COVERINGS
2
DEMONSTRATIONS
2
ENVIRONMENTAL IMPACT
2
ICE COVER
2
NAVIGATION
2
RIVER ICE
2
SAINT LAWRENCE RIVER
2
WINTER
2
*AQUATIC PLANTS
1
*BOOMS(EQUIPMENT)
1
*Frazil ice
1
*GLACIOLOGY
1
*INLETS
1
*LIMNOLOGY
1
*PATHOGENIC MICROORGANISMS
1
*River ice
1
*Water intakes
1
Air Condition
1
BUOYANCY
1
BUTOMUS UMBELLATUS L
1
Biology
1
CONSERVATION
1
CONTROL
1
DAMAGE
1
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