常見例句雙語例句A permanent magnet and a moving contact are fixed on a swing plate which can deflect, and the top end of the swing plate is hung on a coil brace through a spring.永久磁鐵和動觸頭固定在擺動板上，擺動板可偏轉(zhuǎn)，頂端通過彈簧吊置在線圈支架上。ip.com 返回 moving coil contact