() the cylinder walls, the heat passes through them by conduction.
A、When receiving by
B、When received by
C、In order to receiving
D、In order to receive
A、When receiving by
B、When received by
C、In order to receiving
D、In order to receive
A、alternation of side thrust B、a breakdown of the lube oil film on the cylinder wall C、worn piston boss piston pin bearings D、fluctuating gas pressure in the combustion space
A、blows out the exhaust gases B、supplies oxygen for combustion C、cools the valves and cylinder walls D、all of the above
A、of the thin wall thickness B、honing makes it easier to maintain the desired oil ilm C、water seals are not required D、it fits more loosely due to a decrease in heat transfer through the composite wall
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