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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When the opening pressure of a diesel fuel injector is greater than that specified by the
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The domestic fresh water pump starters are controlled by pressure switches which operate w
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The pump has a constant stroke and the amount of fuel delivered is regulated by rotating _
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The fuel injector pump is operated by _____ which drives the plunger up and down.A.a separ
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The amount of fuel delivered by a unit injector is controlled by the _____.A.camshaftB.mai