slug: 245 phrases in 29 subjects |
Advertising | 2 |
Agriculture | 4 |
Air defense | 1 |
Animal husbandry | 1 |
Automobiles | 1 |
Aviation | 4 |
Biology | 26 |
Boxing | 1 |
Bridge construction | 1 |
Chemistry | 3 |
Construction | 1 |
Drilling | 15 |
Electronics | 33 |
Entomology | 12 |
General | 11 |
Hunting | 1 |
Metallurgy | 4 |
Mining | 3 |
Nuclear physics | 1 |
Oil / petroleum | 46 |
Pest control | 5 |
Plastics | 14 |
Polygraphy | 1 |
Polymers | 2 |
Refrigeration | 3 |
Space | 2 |
Technology | 42 |
Weapons and gunsmithing | 1 |
Wind Energy | 4 |