Study on Composition and Manufacturing Processes for High Bs and Low Loss Soft Magnetic Mn-Zn Ferrite Produced from Refined Mine Powders.是什么意思_Study on Composition and Manufacturing Processes for High Bs and Low Loss Soft Magnetic Mn-Zn Ferrite Produced from Refined Mine Powders.在线翻译_英语_读音_用法_例句