 |
| vitesse de propagation: 27 phrases in 16 subjects |
| Agriculture | 2 |
| Chemistry | 2 |
| Construction | 1 |
| Earth sciences | 4 |
| Environment | 1 |
| Forestry | 1 |
| General | 1 |
| Life sciences | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |
| Physical sciences | 1 |
| Superconductivity | 1 |
| Technology | 2 |
| Telecommunications | 2 |
| Transport | 4 |
| United Nations | 1 |