But I can accept that. I'll be very good at dreaming by then.
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.
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Because I am deeply concerned about users losing their most sacred data.
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"""数据实体类 - 封装抓取结果"""
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