Pulley
Описание Раскадровки
New Innovations - Pulley | The pulley is a wheel which forms part of a machine that can be used to make lifting heavy objects easier. Its mechanical advantage is equal to the number of wheels used.
Текст Раскадровки
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- PULLEYThe pulley is a wheel which forms part of a machine that can be used to make lifting heavy objects easier. Its mechanical advantage is equal to the number of wheels used.
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