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@baolam30
A superconductor is a material that achieves superconductivity, which is a state of matter that has no electrical resistance and does not allow magnetic fields to penetrate. An electric current in a superconductor can persist indefinitely. Superconductivity can only typically be achieved at very cold temperatures.
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Minh Đan
@minhdan
Every moment with you is a cherished memory. Ơi trời ơi!
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