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通常,“热”沿物体传递时,只能凭皮肤的触觉感知,不能靠视觉观察。为了能够把热“传递”的过程呈现在学生的眼前,我设计了一种能形象直观地演示
Often, “hot” is passed along an object and can only be perceived by the touch of the skin, not by visual observation. In order to be able to present the process of hot “passing” to the students, I designed a visual presentation