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winding mechanism /ˈwɪnd səplˈaɪ/ n

中文：卷帘机构

中文 · 卷帘机构Español · mecanismo de cuerdaFrançais · mécanisme d’enroulement
Meaning：Spring mechanism allowing the shade cloth to roll up and down.
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Found in these illustrated scenes（2）

Weight-driven movement Blind parts

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