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| optische Geräte | |||
| optische Instrumente | |||
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| optisches Gerät | |||
| optisches Instrument | |||
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optical instruments : 63 phrases in 12 subjects |
| Earth sciences | 2 |
| Economics | 1 |
| Electronics | 1 |
| General | 4 |
| Industry | 3 |
| Life sciences | 4 |
| Measuring instruments | 2 |
| Optics branch of physics | 22 |
| Patents | 20 |
| Physics | 2 |
| Technology | 1 |
| Transport | 1 |