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| FuE | |
| stat. | research and development |
| Ventil | |
| gen. | valve; trigger |
| chem. | clack-valve |
| eng. | cock; faucet; tap |
| forestr. | motor valve |
| refrig. | compressor valve |
| Ventil- | |
| agric. | valve |
| Ventile | |
| gen. | valves |
|
Fu?ventil : 3 phrases in 2 subjects |
| Mechanic engineering | 2 |
| Technology | 1 |