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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.
。关于这个话题，搜狗输入法提供了深入分析
圖像加註文字，韓國的亞運電競金牌選手與其他項目的金牌一樣，可免服兵役只不過，就目前而言，電競與成為奧運項目，或者像足球、田徑、游泳等傳統體育一樣的國家、民族情緒載體，仍有一段距離，而短期內似乎也很難看到亞洲家長會欣然讓孩子放棄學業，去職業電競訓練營。
Artie Beaty, Contributing WriterContributing Writer