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conical washer /ˈkɒnɪkəl ˈwɒʃə/ n

中文：锥形垫圈

中文 · 锥形垫圈Español · junta cónicaFrançais · rondelle conique
Meaning：Watertight seal inserted in the toilet bowl opening to prevent the water from escaping.
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Toilet

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