这款耳机使用了铁氧体磁芯来减少电磁干扰。

These headphones use a ___ferrite core to minimize electromagnetic interference.

低碳钢中的铁素体具有优异的延展性。

The ___ferrite in low-carbon steel exhibits excellent ductility.

耳机线上有一个铁氧体磁环，可以减少电磁干扰。

There's a ___ferrite core on the headphone cable to minimize electromagnetic interference.