These piston rings are so badly worn that they must be ().
相似题目
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If the back clearance of a piston ring is excessive,()
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Excessive piston ring wear in a diesel engine will cause()
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In the sentence “In some designs the cylinder oil is timed so that the oil injects only on the piston ring belt, the "piston ring belt" means ().
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The piston ring grooves for a standard engine are ()
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The piston rings are manufactured with a diameter () the bore of the cylinder.
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A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring() Ⅰ.gap Ⅱ.side
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In order to keep the oil film on the cylinder liner during the running-in period, the piston rings are slightly rounded()
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All the rings are slightly rounded on their external top and bottom edges to keep the oil film on the cylinder liner during () for new piston rings.
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Around the combustion chamber, all the main components are bore cooled to give low strains and the smallest, circumferentially symmetric deformations for good sealing between piston rings and liner()
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Improperly fitted piston rings in a diesel engine can cause()
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Before replacing a piston you should check the rings to see that all clearances and gaps are () the permissible tolerances.
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The sealing function of the piston ring is brought about by the gas pressure above and behind the piston ring, which forces it () against the bottom of the ring groove, and () against the cylinder wall.
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When installing rings on a diesel engine piston, you should check the ring()
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Ring groove inserts are occasionally used on aluminum alloy piston to()
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In the two stroke diesel engine, it is designed so that the oil impingement is timed to proceed only on the piston ring belt during()
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If the piston ring gap remains insufficient when installing new rings, youshould()
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Insufficient end clearance on newly fitted piston rings in a diesel enginewill cause the rings to()
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When inspecting piston rings through the ports of a two-stroke/cycle diesel engine, black areas on the sealing surfaces are the result of ()
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The main function of piston compression rings is to ()
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Diesel engine piston ring blow-by is usually caused by excessive ring clearance at the ring()
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The lowest ring of a piston is ().
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The sealing rings are in four parts and pressed together around the piston rods by means of ().
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Can you find out the _____ between these two pictures? At first sight, they are so similar to each other.
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These two signatures are so_____that it's very difficult to______them apart.
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