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Channel : 256 phrases in 38 subjects |
| Agriculture | 5 |
| Automatic control | 1 |
| Chemistry | 3 |
| Commerce | 5 |
| Communications | 3 |
| Construction | 78 |
| Economics | 5 |
| Electric machinery | 1 |
| Electronics | 3 |
| Engineering | 1 |
| Finances | 2 |
| General | 3 |
| Geography | 2 |
| Geology | 1 |
| Hydrology | 1 |
| Law | 1 |
| Mathematics | 1 |
| Medical | 4 |
| Melioration | 3 |
| Microsoft | 18 |
| Mining | 1 |
| Nautical | 3 |
| Nuclear physics | 3 |
| Obsolete / dated | 2 |
| Pharmacy and pharmacology | 2 |
| Piezoelectric crystals | 1 |
| Power lines | 17 |
| Radio | 25 |
| Satellite communications | 1 |
| Semiconductors | 2 |
| Sound recording | 16 |
| Superconductivity | 1 |
| Technology | 3 |
| Telecommunications | 14 |
| Telegraphy | 15 |
| Telephony | 2 |
| Thermal Energy | 4 |
| Transport | 3 |