effluent : 76 phrases in 12 subjects |
Agriculture | 6 |
Chemistry | 14 |
Construction | 11 |
Environment | 12 |
General | 2 |
Geology | 1 |
Geophysics | 1 |
Hydraulic engineering | 3 |
Natural resourses and wildlife conservation | 11 |
Nautical | 1 |
Nuclear physics | 4 |
Technology | 10 |