Accurate measurement of static magnetic parameter of high-density hard-disk media is vital for research and development of high-density hard-disk.

高密度硬盘介质静态磁性参数的精确测量对研制高密度硬盘至关重要。

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It is also a vital component of high-voltage wires, magnetic coatings for high-density hard disk drives, fiber optics, fiberglass, catalytic converters and spark plugs.

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