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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.
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Spats, theatrics and a walkout - How the Pam Bondi hearing unfolded
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伯里指出，英伟达总计 1170 亿美元的供应义务几乎与截至 1 月 25 日的年度运营现金流持平。