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碳刷
電機碳刷概述 碳刷是電動機或發(fā)電機或其他旋轉(zhuǎn)機械的固定部分和轉(zhuǎn)動部分之間傳遞能量或信號的裝置，它一般是純碳加凝固劑制成，外型一般是方塊，卡在金屬支架上，里面有彈簧把