lubrication of the moving surface
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Lubrication is the control of friction and wear by the introduction of a friction-reducing film between moving surfaces in contact. The lubricant used can be a fluid, solid, or plastic substance. ... Many different substances can be used to lubricate a surface. Oil and grease are the most common
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To avoid friction we can can use many lubricants like greeze ,oil,it can reduce the wearing and tearing of mechanical parts by reduxing friction
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