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A clear and easily-understood introduction to simple machines, this text showcases the parts of each machine, how each machine works and how they are used in the world around us.
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A clear and easily-understood introduction to simple machines, this text showcases the parts of each machine, how each machine works and how they are used in the world around us.
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"A clear and easily-understood introduction to simple machines, this text showcases the parts of each machine, how each machine works and how they are used in the world around us."
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