A method to measure the AC magnetic permeability of magnetic material by the change of the induced electromotive force when the material is inserted into or pulled out from the coil.是什么意思_A method to measure the AC magnetic permeability of magnetic material by the change of the induced electromotive force when the material is inserted into or pulled out from the coil.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句