 |
| |||
| circular; em forma de toro | |||
| toroidal: 28 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Earth sciences | 4 |
| Electronics | 9 |
| Mechanic engineering | 4 |
| Natural sciences | 3 |
| Nuclear and fusion power | 4 |
| Physical sciences | 1 |
| Superconductivity | 1 |
| Transport | 1 |
|
| |||
| circular; em forma de toro | |||
| toroidal: 28 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Earth sciences | 4 |
| Electronics | 9 |
| Mechanic engineering | 4 |
| Natural sciences | 3 |
| Nuclear and fusion power | 4 |
| Physical sciences | 1 |
| Superconductivity | 1 |
| Transport | 1 |