- spire rodell gw. -où
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sciences, technique ◊ portion d'une spirale : de ressort...en turn, spire, coil
- spire jointive rodell juntek gw.
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physique, mécanique ◊ type de spire de ressort...en joined spire
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ressort à spires jointives
gwinterell gant rodelloù juntek
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ressort à spires jointives
- spire non jointive rodell nann-juntek gw.
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physique, mécanique ◊ type de spire de ressort...en non-jointed spire
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ressort à spires non jointives
gwinterell gant rodelloù nann-juntek
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ressort à spires non jointives