So the transformer core material is required to be the one with properties of low losses at high frequency, high dynamic permeability, high saturation induction and low remanence.

要求变压器铁芯具有低的高频损耗，高动态磁导率，高饱和磁感应强度和低的剩磁比。

youdao

For low-frequency currents(up to about 15, 000 cycles per second)an iron core, called a magnetic circuit; is placed.

对于低频率电流（约15，000 周秒以内），置有一个叫作磁路的铁心。

youdao

Eight core oceans heart high-frequency smoother and exquisite, low-frequency texture better, acoustic field have the greater ascension, triple frequency equilibrium.

八芯的海洋之心高频更加顺滑细腻，低频质感更好，声场得到更大的提升，三频均衡。

youdao