| collision frequency abbr. | |
| commun. | fréquence de chocs |
| earth.sc. | fréquence de collision |
|
electronical : 9 phrases in 6 subjects |
| Automated equipment | 1 |
| Electronics | 3 |
| Hobbies and pastimes | 1 |
| Measuring instruments | 1 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 2 |