 |
| instabilidade: 220 phrases in 24 subjects |
| Astronautics | 1 |
| Chemistry | 1 |
| Communications | 8 |
| Construction | 1 |
| Earth sciences | 62 |
| Electricity generation | 5 |
| Electronics | 63 |
| Finances | 4 |
| General | 19 |
| Information technology | 1 |
| Labor law | 2 |
| Life sciences | 11 |
| Magnetics | 1 |
| Materials science | 2 |
| Medical | 5 |
| Metallurgy | 1 |
| Natural sciences | 8 |
| Nuclear physics | 1 |
| Physical sciences | 8 |
| Social science | 1 |
| Sound recording | 3 |
| Technology | 1 |
| Transport | 10 |
| Vacuum tubes | 1 |