spot : 63 phrases in 20 subjects |
Agriculture | 2 |
Animal husbandry | 1 |
Communications | 10 |
Earth sciences | 1 |
Electronics | 7 |
Finances | 10 |
General | 1 |
Health care | 1 |
Information technology | 3 |
Lighting other than cinema | 1 |
Materials science | 1 |
Medical | 3 |
Metallurgy | 1 |
Piezoelectric crystals | 1 |
Radio | 6 |
Technology | 3 |
Telegraphy | 2 |
Thermal Energy | 1 |
Transport | 4 |
Vacuum tubes | 4 |