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| motivating forces (treibende Kraft) | |||
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| spring; driving force; motivating force; primum mobile | |||
| driving spring | |||
| incitement | |||
| clockwork spring; mainspring; motive spring; main spring | |||
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Triebfedern : 4 a las frases, 2 temas |
| Industria | 1 |
| Ingeniería mecánica | 3 |