该滤波器更包括一封装体，包覆该线圈组于其中。
The wave filter also comprises a packaging body, and the packaging body covers the coil group thereinto.
分离的该第一铁芯与该第二铁芯便于供该线圈所缠绕，更利用 该包覆于该第一铁芯与该第二铁芯的基座使整体结构更加稳固。
The separated first iron core and the second iron core are easy for the coil to wind; furthermore, the base wrapping the first iron core and the second iron core leads to more stable whole structure.
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