A.Pressure-reducing valve
B.Unloading valve
C.Counterbalance valve
D.Pressure-relief valve
第1题
A.the propeller diameter
B.the propeller radius
C.the pitch angle
D.the length of helix
第2题
A.fuel delivery pressure
B.pump plunger diameter
C.plunger control rack position
D.total pump stroke
第3题
A.defective solenoid valve
B.dirty fuel nozzle
C.grounded high tension lead
D.faulty ignition cable connector
第4题
A.sliding bowl bottom
B.gravity disc
C.separating disc
D.scum valve
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