 |
| placa: 1010 phrases in 48 subjects |
| Accumulators | 7 |
| Agriculture | 27 |
| Antennas and waveguides | 4 |
| Astronautics | 1 |
| Chemistry | 69 |
| Coal | 2 |
| Communications | 35 |
| Construction | 13 |
| Cultural studies | 2 |
| Earth sciences | 42 |
| Economy | 1 |
| Electric motors | 5 |
| Electrical engineering | 1 |
| Electronics | 71 |
| Energy industry | 1 |
| Environment | 2 |
| Finances | 2 |
| Forestry | 6 |
| General | 39 |
| Health care | 7 |
| Hobbies and pastimes | 1 |
| Industry | 121 |
| Information technology | 88 |
| Insurance | 1 |
| Life sciences | 19 |
| Lighting other than cinema | 1 |
| Magnetics | 1 |
| Materials science | 7 |
| Mechanic engineering | 153 |
| Medical | 50 |
| Metallurgy | 20 |
| Microsoft | 16 |
| Municipal planning | 1 |
| Natural sciences | 13 |
| Nuclear and fusion power | 12 |
| Nuclear physics | 1 |
| Patents | 11 |
| Pharmacy and pharmacology | 4 |
| Piezoelectric crystals | 7 |
| Printed circuit boards | 21 |
| Radio | 1 |
| Rail transport | 5 |
| Scientific | 3 |
| Statistics | 4 |
| Technology | 23 |
| Thermal Energy | 3 |
| Transport | 84 |
| Vacuum tubes | 2 |