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clapet de dépression | |||
tube à vide | |||
reniflard m |
vacuum valve : 20 phrases in 10 subjects |
Agriculture | 1 |
Chemistry | 4 |
Electronics | 2 |
Insurance | 2 |
Mechanic engineering | 5 |
Natural resourses and wildlife conservation | 1 |
Power electronics | 1 |
Technology | 1 |
Transport | 1 |
Water resources | 2 |