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To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also().

发布日期:2021-03-22

To function properly, oil control rings used on a ...
A

prevent any lubricant from reaching

B

prevent excessive lubrication from reaching the combustion space

C

Provide metal-to-metal contact to seal the cylinder against blow-by

D

assure a positive means of scraping carbon accumulation from the cylinder

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