求翻译：加入组合磁场，即在线圈横向和纵向上加入磁场，图4为组合磁场模型示意图。单一磁场中，只有横向的磁场，如图4（a），在一定深度内，随着坐标z的增大，B的幅度迅速减小，这一段距离即定义为集肤深度。而对于组合磁场而言，如图4（b），横向和纵向均有磁场，也就是随着 z的增大，B的幅度并不会大幅度减小，从一定程度上有效防止铝质点由于受力不均匀而产生的集肤效应。是什么意思？

Join the combination of magnetic field in the horizontal and vertical coil magnetic field, and Figure 4 for the combination of the magnetic field model diagram. A single magnetic field, only the transverse magnetic field, as shown in Figure 4 (a), in a certain depth, with the coordinate z increases,

In combination, the magnetic field in the coil to the horizontal and vertical magnetic field and magnetic field in the combined figure 4 Schematic model. In a magnetic field, the magnetic field is only horizontal, as shown in Figure 4 (A) and to a certain depth coordinates with Z, the increase in th

Joins combines the magnetic field, namely crosswise and on longitudinal joins the magnetic field in the coil, Figure 4 combines the magnetic field model schematic drawing.In sole magnetic field, only then the crosswise magnetic field, like Figure 4(a), in certain depth, along with coordinates z enla

Join combination magnetic fields, namely the coil joined magnetic fields on both horizontal and vertical, Figure 4 is a combination magnetic field model diagram. A single magnetic field, only the horizontal magnetic field, as shown in Figure 4 (a), within a certain depth, as the coordinate z increas

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