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obturateur m | |||
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iris de guide d'ondes |
przesłona : 19 phrases in 9 subjects |
Analytical chemistry | 1 |
Antennas and waveguides | 2 |
Construction | 5 |
Lighting other than cinema | 2 |
Power system protection | 1 |
Radiology | 3 |
Rail transport | 2 |
Telegraphy | 2 |
Transport | 1 |