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Main : 677 phrases in 36 subjects |
| Abbreviation | 4 |
| Antennas and waveguides | 2 |
| Architecture | 2 |
| Buddhism | 4 |
| Computers | 29 |
| Construction | 44 |
| Electric machinery | 8 |
| Electric motors | 3 |
| Electric traction | 5 |
| Electrical engineering | 1 |
| Electricity generation | 2 |
| Electronics | 2 |
| General | 403 |
| Geography | 3 |
| Historical figure | 2 |
| Industry | 10 |
| Law | 5 |
| Lighting other than cinema | 2 |
| Linguistics | 4 |
| Mathematics | 3 |
| Microsoft | 11 |
| Music | 1 |
| Obsolete / dated | 1 |
| Physics | 10 |
| Power lines | 2 |
| Power system protection | 2 |
| Radio | 1 |
| Rail transport | 4 |
| Semiconductors | 1 |
| Shinto | 3 |
| Sound recording | 1 |
| Technology | 93 |
| Telecommunications | 1 |
| Telephony | 5 |
| Transformers | 2 |
| Vacuum tubes | 1 |