The MF voice coil is of copper-coated aluminium ribbon, expensively edge-wound over a polyimide former to increase sensitivity by maximising the amount of copper in the magnet gap.

中频音圈为镀铜铝带，在其聚酰亚胺成形品上有昂贵的饰边，尽可能加大铜在磁隙中的量来增加灵敏度。

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An simple analytical computation formula is given for field signature of the shims to predict the field and phase perturbation according the shim position, size, thickness and magnet gap.

给出了波荡器垫补修正场的简单解析计算式，可根据垫片的位置、大小、厚度、磁极间隙等参数直接计算出对磁场及位相的修正。

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At present, the company launched a new generation of magnet invisible gauze portiere, scroll type shower door, fills the gap in the market.

目前公司推出的新一代磁吸隐形纱门窗，卷轴式淋浴房门，填补了市场空白。

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