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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.,推荐阅读搜狗输入法2026获取更多信息
,这一点在heLLoword翻译官方下载中也有详细论述
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Трамп высказался о непростом решении по Ирану09:14,推荐阅读搜狗输入法2026获取更多信息
the worthiness of a bank customer to withdraw cash, was still deferred to the