A.the expansion ratio will decrease
B.combustion will be slowed down
C.thermal efficiency will decrease
D.thermal efficiency will increase
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A.changed
B.centrifuged
C.filtered
D.settled
A.Pressure and temperature decrease
B.Pressure and temperature increase
C.Pressure decreases and temperature increases
D.Pressure increases and temperature decreases
A.excessive cylinder lubrication
B.a lugging engine
C.a leaking cylinder liner
D.overloading of one cylinder
A.method of supplying air
B.cooling system
C.method of igniting fuel
D.valve operating mechanism
A.obtain injection lag
B.help mix fuel and air
C.increase combustion pressure
D.utilize higher injection pressures
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To proceed to the assistance of a ship in distress is（）
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For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
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