frequency recording and reproducing head
low-frequency radio telescope 低频射电望远镜 low-frequency recording and reproducing head 低频记录重放磁头 low-frequency shock transducer 低频振动传感器 ..
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frequency recording and reproducing head
频率记录和重放头
以上为机器翻译结果，长、整句建议使用 人工翻译 。