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小朋友,你看到过电视机壳子后面有许多小洞洞吗?”电视机里面有许多电子元件。打开电观机的时候,电流就会通过这些元件产生热量。为了让电视机工作
Children, have you seen many small holes in the back of the TV case? "There are many electronic components in the TV set, and when the watch is switched on, the current is passed through these components to generate heat.To make the TV work