 |
| apertura: 506 phrases in 54 subjects |
| Accounting | 4 |
| Accumulators | 1 |
| Agriculture | 24 |
| Animal husbandry | 1 |
| Antennas and waveguides | 7 |
| Astronautics | 1 |
| Brazil | 4 |
| Chemistry | 8 |
| Coal | 1 |
| Commerce | 1 |
| Communications | 17 |
| Construction | 5 |
| Cultural studies | 2 |
| Earth sciences | 18 |
| Economy | 7 |
| Electric machinery | 1 |
| Electrical engineering | 3 |
| Electricity generation | 2 |
| Electronics | 93 |
| Finances | 29 |
| Fish farming pisciculture | 5 |
| Food industry | 1 |
| General | 28 |
| Hobbies and pastimes | 18 |
| Industry | 26 |
| Information technology | 16 |
| Insurance | 5 |
| Isolation | 1 |
| Labor law | 1 |
| Law | 8 |
| Life sciences | 1 |
| Lighting other than cinema | 2 |
| Marketing | 8 |
| Materials science | 15 |
| Mechanic engineering | 40 |
| Medical | 3 |
| Metallurgy | 8 |
| Microsoft | 3 |
| Municipal planning | 3 |
| Natural sciences | 14 |
| Politics | 1 |
| Polymers | 2 |
| Power electronics | 1 |
| Power system protection | 9 |
| Radio | 1 |
| Rail transport | 1 |
| Scientific | 2 |
| Sound recording | 1 |
| Technology | 7 |
| Telecommunications | 1 |
| Telegraphy | 1 |
| Thermal Energy | 1 |
| Transport | 42 |
| Video recording | 1 |