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单词 electroscope
释义 electroscope
A device for detecting electric charge and for identifying its polarity. In the gold-leaf electroscope two rectangular gold leaves are attached to the end of a conducting rod held in an insulated frame. When a charge is applied to a plate attached to the other end of the conducting rod, the leaves move apart owing to the mutual repulsion of the like charges they have received
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更新时间:2025/6/23 6:14:40