本实用新型能有效提高磁化线圈的散热效率，提升线圈磁化能力，延长线圈使用寿命。
The utility model can effectively improve the cooling efficiency and magnetic capacity of the magnetic coil, so as to extend the service life of the coil.
本实用新型能有效提高磁化线圈的散热效率，提升线圈磁化能力，延长线圈使用寿命。
The utility model can effectively improve the cooling efficiency and magnetic capacity of the magnetic coil, so as to extend the service life of the coil.
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