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The product is double insulated. Big Switch.
该产品双绝缘。大开关设计。
youdao
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Double wall vacuum-insulated keeps water hot while saving energy and money.
双层真空隔热保持热水，同时节省能源和金钱。
youdao
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Double wall vacuum-insulated keeps water hot while saving energy and money.
双层真空隔热保持热水，同时节省能源和金钱。
youdao