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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。heLLoword翻译官方下载对此有专业解读
王军目前负责华千里科技研发等技术板块，陈奇负责芯片硬件平台。此次赵明加入，技术产品商业化将形成华为系主导的格局。。WPS官方版本下载对此有专业解读
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Trump isn’t sold on the Netflix-Warner Bros. deal.