impoundment: 35 phrases in 19 subjects |
Aluminium industry | 1 |
Automobiles | 1 |
Business | 1 |
Ecology | 3 |
Electronics | 1 |
Energy industry | 2 |
Finances | 2 |
Gas processing plants | 1 |
General | 3 |
Gold mining | 5 |
Law | 4 |
Metallurgy | 3 |
Politics | 1 |
Scientific | 1 |
Technology | 1 |
Transport | 2 |
United States | 1 |
Weapons of mass destruction | 1 |
Zoology | 1 |