| Ionisationskammer | |
| chem. | chambre d’ionisation |
| earth.sc. tech. | chambrion |
| el. | chambre d'ionisation |
| Ionisationskammern | |
| gen. | chambres d'ionisation |
|
Parallelplatten : 21 phrases in 4 subjects |
| Earth sciences | 1 |
| High energy physics | 1 |
| Natural resourses and wildlife conservation | 1 |
| Radiation | 18 |