The so-called iron-core inductor, inductance refers to media for the electrical circuit components of softiron, steel and other iron core inductor coil media.
所谓铁心电感，泛指电感元件磁路介质为电工软铁、硅钢片等铁心介质的电感线圈。
2
It is composed of a primary winding, secondary winding and core of softiron.
点火线圈有初级线圈、次级线圈和铁芯组成。
3
The best core consists of a bundle of softiron wires held together by a wrapping of cloth, cord or other binder.