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化学 四氧化三锰 Ferrite is one kind of soft magnetic material which is widely used incommunication, the audio and video equipment, power switch and magnetichead industry, etc. Hausmannite is the main material to produce ferrite. 四氧化三锰(Mn_3O_4)是生产软磁铁氧体的重要原料,而铁氧体是一种广泛应用于通信、声像设备、开关电源和磁头工业的软磁材料。
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