niya45 niya45
  • 03-03-2016
  • Biology
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friction in machines is commonly reduced by using

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Dracula419
Dracula419 Dracula419
  • 03-03-2016
by  ball bearing, lubrication, polishing, adding grease etc
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Andy123321 Andy123321
  • 03-03-2016
Friction is typically reduced by applying an oil or grease to the afflicted joint.
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