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| zur Beobachtung | |||
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for observation : 19 phrases in 12 subjects |
| Astronautics | 4 |
| Earth sciences | 1 |
| Environment | 2 |
| Finances | 1 |
| Fish farming pisciculture | 1 |
| General | 2 |
| Medical appliances | 1 |
| Natural sciences | 1 |
| Politics | 1 |
| Statistics | 2 |
| Technology | 1 |
| Transport | 2 |