 |
| |||
| richting van de zwaartekracht | |||
| verticaal | |||
| loodlijn | |||
| pystysuora: 42 phrases in 13 subjects |
| Astronautics | 2 |
| Communications | 2 |
| Earth sciences | 3 |
| Electronics | 5 |
| Environment | 2 |
| General | 1 |
| Industry | 4 |
| Information technology | 7 |
| Mechanic engineering | 5 |
| Metallurgy | 1 |
| Microsoft | 2 |
| Statistics | 2 |
| Transport | 6 |