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spoedvormige schijf | |||
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wormschijf | |||
schroeflijnvormig; schroefvormig; spiraalvormig |
helical : 153 phrases in 14 subjects |
Agriculture | 10 |
Chemistry | 4 |
Communications | 3 |
Construction | 18 |
Earth sciences | 13 |
Electronics | 15 |
General | 1 |
Hydraulics | 2 |
Industry | 3 |
Materials science | 1 |
Mechanic engineering | 48 |
Medical | 12 |
Metallurgy | 10 |
Transport | 13 |