|
Schwelle : 38 phrases in 14 subjects |
| Communications | 4 |
| Construction | 1 |
| Earth sciences | 7 |
| Electronics | 2 |
| Environment | 3 |
| Finances | 1 |
| General | 3 |
| Health care | 1 |
| Information technology | 1 |
| Investment | 1 |
| Mechanic engineering | 5 |
| Politics | 1 |
| Transport | 7 |
| Vacuum tubes | 1 |