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cup gasket /ˈkʌp ˈɡaskɪt/ n

中文：杯垫圈

中文 · 杯垫圈Español · mascarillaFrançais · coupelle d’étanchéité
Meaning：Part of the mask that adheres to the bottom of the face and prevents ambient air from entering.
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Half-mask respirator

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