Optical-based smoke alarms use light instead. They are slightly better at detecting the large smoke particles created by slow, smouldering fires. When such particles enter a chamber in the device, they scatter light from a small light source, which is then picked up by a photoelectric sensor.
豆包与 Manus 一样，也去网络上查询了相关信息，并将 Boris 本人的照片截图放到了 PPT 中，而且合乎逻辑地和原文中提到的「核心思想」放在一起展示。
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