磁铁的四个基本性质包含两极性、不可分割性、相互作用性和磁化性。具体介绍如下：
The four basic features of magnets include polarization, indivisibility, interaction and magnetism. These are described below:
1、两极性。磁铁具有南北两个磁极，磁性北极N，磁性南极S，斩断后仍是两极N级、S极。
1, bipolar. Magnetics have two magnetic poles, North and South, magnetic Arctic N, magnetic Antarctic S, and are still bipolar N, S poles.
2、不可分割性。单个磁极不能存在，必须相对存在。
2. Indivisibility. Individual magnetic poles cannot exist and must be relative.
3、相互作用。磁铁的磁极间存在着相互作用，同名磁极相互排斥、异名磁极相互吸引。
3. Interactions. There are interactions between magnetic poles of magnets, where the same name magnets are mutually exclusive and the different names magnets attract each other.
4、磁化性。磁体周围存在着一种物质，能使磁针偏转，这种物质在物理学上被称作磁场。磁场的分布通常用磁感线来表示。如果把一个磁体悬挂起来，就会发现它的南极指向地理南磁极左右，北极指向北磁极左右。
Four. Magnetic. There is a material around the magnet, which can deflect the magnetic needle, which is called the magnetic field in physics. The distribution of the magnetic field is usually expressed in magnetic senses. If you hang a magnet, you can see that the Antarctic is pointing around the geo-magnetic pole and the Arctic towards the northern magnetic pole.
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