Subject
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Drainage
1
Drillholes
5
Drilling
8
Dust
4
Economic analysis
3
Economic aspects
7
Economic conditions
1
Economic development
1
Economic geology
3
Economic impact
1
Economic indicators
1
Economic policy
1
Economics
55
Education
15
Effluents
2
Electric power
23
Electric power production
1
Electric utilities
5
Electrical engineering
1
Electricity
10
Emission reduction
7
Emissions
55
Emmission reduction
6
Employment
1
Energy
28
Energy CRISIS
1
Energy conservation
3
Energy consumption
9
Energy demand
1
Energy efficiency
2
Energy management
1
Energy production
2
Energy resources
2
Energy source development
8
Energy sources
1
Energy supply
1
Engineering
1
Engineering geology
4
Environment
12
Environment aspects
2
Environmental aspects
23
Environmental assessment
7
Environmental geology
2
Environmental impact statements
1
Environmental impacts
18
Environmental legislation
1
Environmental policy
1
Environmental protection
9
Eolian features
1
Equipment
4
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