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.
OPPO Find N6 是 OPPO 即将推出的大折叠手机，结合博主「数码闲聊站」的爆料和入网信息，Find N6 的硬件轮廓已经基本清晰：处理器换上了骁龙 8 Elite Gen 5，并且细分出了普通版和卫星通信版两个型号，充电则稳扎稳打地停留在 80W。
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Рыба-меч пронзила женщине сердце. Это не единственный случай смертельных нападений остроносых рыб на людей22 октября 2024
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