... moving coil可动线圈 moving coil ammeter动圈式安培计 moving coil instrument动圈式仪表 ...
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permanent magnet moving-coil type ammeter 永久磁铁动圈式安培计 moving coil type ammeter 动圈式安培计 moving coil type loudspeaker 动圈式扬声器 ..
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永久磁铁动圈式安培计 permanent magnet moving-coil type ammeter
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