问题
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The effective stroke of a constant-stroke, individual, fuel injection pump is varied by the _____.
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Early fuel injection timing is indicated by the cylinder pressure being ________.
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The high pressure in fuel injection system of the diesel engine is produced by the _____.A
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The sequence of fuel injection into cylinders is determined by _____.A.the steeringB.the d
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Failure of fuel injection is usually due to trouble in the _____.A.exhaust valvesB.mechani
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Heat damage to fuel injection nozzles can be prevented by avoiding ____.A.excessive fuel o