Subject
raw material policy
6
raw material supply
6
raw material
4
raw material consumption
4
raw material shortage
4
mining
3
mining engineering
3
energy production
2
energy prognosis
2
energy recovery
2
metal industry
2
bituminous shale
1
energy environment balance
1
energy management
1
energy planning
1
energy policy
1
energy program
1
energy research
1
energy resource
1
geologic structure
1
metallurgy
1
mineral deposit
1
mineral exploration
1
mineral resources
1
nonmetal
1
ore deposit
1
ore mineral
1
ore reserve
1
thorium deposit
1
uranium deposit
1