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卡片总数: 1 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
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正面 (问题)
1.) What is convection? 2.) Why does convection make a circular motion?
背面 (解答)
1.) Convection is heat transfer by the movement of gasses or liquids. 2.) A circular motion occurs because hot liquid & gas rise which pushes the cooler liquid & gas downward.