另外，由于线圈同时受到板料和凹形导槽的反作用力，有利于提高线圈的使用寿命。
In addition, since the coils are reacted by the metal sheet and the conductive outer channel, help to improve the life of the coils.
另外，由于线圈同时受到板料和凹形导槽的反作用力，有利于提高线圈的使用寿命。
In addition, since the coils are reacted by the metal sheet and the conductive outer channel, help to improve the life of the coils.
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