هستند اهن ربا و اهن ربا همان ٪ 3f

٪0a٪c2٪a0 ٪c2٪a0 Magnets are iron converted by modern industry through magnetization٪2c that is٪2c iron with magnetism٪2c but their magnetism is not fixed and will demagnetize over time.
٪0a٪c2٪a0 ٪c2٪a0 Magnet is a magnetic stone in nature٪2c also known as a permanent magnet. From the perspective of traditional Chinese medicine٪2c magnetite has the function of اس
٪0a٪c2٪a0 ٪c2٪a0 Magnets can attract metals such as iron٪2c nickel٪2c and cobalt٪2c commonly known as magnets. It can be divided into common permanent magnets and electromagnets that only have magnetism when energized.
٪0a٪c2٪a0 ٪c2٪a0 The commonly referred to magnetite is actually called a magnet٪2c but true magnetite is a type of ore that contains a large amount of magnetic material that can attract iron٪2c so it is called magnetite.
٪0a٪c2٪a0 ٪c2٪a0 Because iron can be magnetized (in fact٪2c its constituent atoms are rearranged)٪2c it has the ability to attract iron like a magnet. But magnetism is not as good as magnetism.
٪0a٪c2٪a0 ٪c2٪a0 Magnets and magnets have a wide range of applications in daily life In Industrial production٪2c magnets are used in fields such as electric motors٪2 در حالی که برای اولین بار در روز تنها تنها با وجود داشت که در ابتدا با وجود تنها تنها با وجود وجود داشت، در حالی که تنها با وجود وجود داشت که در روز تنها تنها با وجود وجود داشت که در روز تنها با وجود تنها با وجود وجود دارد که تنها با وجود تنها با وجود وجود دارد که تنها تنها با وجود وجود دارد که تنها با وجود تنها تنها با وجود وجود دارد که تنها با وجود تنها تنها با وجود وجود دارد که تنها با وجود تنها با وجود وجود دارد که تنها با وجود وجود دارد که تنها با وجود تنها با وجود وجود دارد که تنها تنها با وجود تنها در جهان با وجود تنها در جهان تنها با وجود تنها
٪0a٪c2٪a0 ٪c2٪a0 In short٪2c whether it is a magnet or a magnet٪2c they are a well-known existence. We should cherish and make good use of their power to create a better life.