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| Serviceelement m (An itemized service that participates in an operations process); Serviceartikel m (An item that is subject to maintenance work managed in a service order) | |||
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service item : 4 do fraz, 3 tematyki |
| Badania operacyjne | 2 |
| Komunikacja | 1 |
| Technika i technologia | 1 |