The size of holes that can be cut depends on the size of the coil, so specific coils will be needed for each application.
机器能够冲出多大的孔取决于线圈的规格，所以每一种应用需要规格不等的线圈。
The iron core is used to maximize the coupling between the coils (formed by conductors) placed on the stator and rotor, to increase the flux density in the machine and to decrease the size of machine.
铁芯用于使放置在转子和定子中的线圈（由导体构成）之间的耦合最大，以增加电机的磁通密度以及减小电机尺寸。
The pulse frequency was not printed, it is estimated from the size of the coils and transformer that the frequency doesn't exceed 50 Mhz. Don't depend on this being fact, it's just a educated guess.
脉冲频率不能打印，估计从变压器线圈的大小和频率不超过50兆赫。不要依赖于这个被事实上，这只是一个猜测。
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