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retaining ring /ɹɪtˈeɪnɪŋ ˈɹɪŋ/ n

中文：挡圈

中文 · 挡圈Español · anillo de retenciónFrançais · bague de serrage
Meaning：Plastic part inside the faucet body keeping the washer in place.
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Found in these illustrated scenes（1）

Cartridge faucet

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