Khoa học và công nghệ

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DIY Bandana Face Covering

Submitted by admin on Tue, 10/11/2022 - 10:24

Digital Thermometer

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Corona Virus

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Colosseum

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Medical Ventilator

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Car Engine

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Air Inlet

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Neutrophil

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Archimedes Principle

Submitted by admin on Tue, 10/11/2022 - 10:24

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