论文部分内容阅读
磁是一种非常普遍的现象,日常生活中随处可见.电子设备、电力系统、通讯自动化控制,无处不利用磁效应和磁性材料.随着磁技术的发展,其应用范围更扩大到了化学、生物、农林、国防、航天、乃至新兴的环保科学等领域之中. 大家知道,化石燃料,尤其是煤的燃烧,目前仍然是地球人的主要能源形式,但大部分煤中都含有较多的硫化物,其中主要以FeS2的形
Magnetism is a very common phenomenon that can be seen everywhere in daily life. Electronic equipment, power systems, and communication automation control, omnipresent use of magnetic effects and magnetic materials. With the development of magnetic technology, its application range has expanded to chemistry, In the fields of biology, agriculture, forestry, national defense, aerospace, and even emerging environmental protection science, we all know that the burning of fossil fuels, especially coal, is still the main form of energy for the Earth’s people, but most coals contain more Sulfides, mainly in the form of FeS2