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| إشــارة | |||
| إشارة | |||
| أشارة | |||
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| تأشير الاشارات في الاتصالات عن بعد | |||
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signal : 413 phrases in 30 subjects |
| Acoustics | 3 |
| Antennas and waveguides | 3 |
| Automatic control | 13 |
| Biotechnology | 1 |
| Electric machinery | 1 |
| Electronics | 30 |
| Entomology | 1 |
| Fishery fishing industry | 4 |
| Forestry | 1 |
| Genetics | 3 |
| Health care | 1 |
| International Monetary Fund | 1 |
| Lighting other than cinema | 3 |
| Magnetics | 7 |
| Microsoft | 5 |
| Piezoelectric crystals | 3 |
| Power lines | 36 |
| Power system protection | 11 |
| Radio | 75 |
| Radiobiology | 2 |
| Rail transport | 85 |
| Remote sensing | 2 |
| Semiconductors | 2 |
| Sound recording | 5 |
| Telecommunications | 43 |
| Telegraphy | 56 |
| Telephony | 1 |
| United Nations | 1 |
| Vacuum tubes | 9 |
| Video recording | 5 |