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佳能推出可穿戴式静音面罩 以保障人们在公共场合谈话的隐私性2月14日，佳能营销日本株式会社推出了可穿戴式降噪设备“Privacy Talk”，型号为MD-100-GY，该设备整体外观与口罩类似，内含了 ...
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