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| |||
| distinctive; distinctively; unmistakable; unique; unmistakeable | |||
| non-interchangeable (z.B. Anschlüsse) | |||
| foolproof | |||
| non-interchangeable; non-reversible; polarized | |||
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unverwechselbar : 3 do fraz, 3 tematyki |
| Inżynieria elektryczna | 1 |
| Pospolicie | 1 |
| Urządzenia pomiarowe | 1 |