... mechanical raster scanning type system 机械录声头 mechanical recording head 机械记录器 mechanical register 机械扫描 ...
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mechanical phonograph recorder recording head 刻纹头
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The results show that HIP ferrites have an improved mechanical properties and such ferrites are very good magnetic head materials for high density recording.
实验表明，热等静压铁氧体具有很好的磁性和力学性能，是一种优良的磁头材料。
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