 |
|
Signals : 549 phrases in 30 subjects |
| Automatic control | 4 |
| Communications | 152 |
| Earth sciences | 3 |
| Economics | 4 |
| Electronics | 152 |
| Environment | 2 |
| Finances | 2 |
| General | 4 |
| Health care | 3 |
| Industry | 1 |
| Information technology | 79 |
| Life sciences | 3 |
| Lighting other than cinema | 1 |
| Magnetics | 2 |
| Mechanic engineering | 4 |
| Medical | 9 |
| Natural sciences | 4 |
| Patents | 3 |
| Pharmacy and pharmacology | 1 |
| Power lines | 10 |
| Radio | 27 |
| Rail transport | 21 |
| Scientific | 1 |
| Technology | 1 |
| Telecommunications | 2 |
| Telegraphy | 11 |
| Telephony | 1 |
| Textile industry | 2 |
| Transport | 39 |
| Vacuum tubes | 1 |