Pulley
القصة المصورة الوصف
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.
نص القصة المصورة
- 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.
تم إنشاء أكثر من 30 مليون من القصص المصورة