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| mittelharter Filter | |||
|
medium filter : 10 phrases in 5 subjects |
| Construction | 1 |
| Environment | 2 |
| Natural resourses and wildlife conservation | 3 |
| Nuclear physics | 1 |
| Technology | 3 |
| |||
| mittelharter Filter | |||
|
medium filter : 10 phrases in 5 subjects |
| Construction | 1 |
| Environment | 2 |
| Natural resourses and wildlife conservation | 3 |
| Nuclear physics | 1 |
| Technology | 3 |