单项选择题X 纠错
A.by turning the pump plunger
B.by vary the fuel valve spring force
C.by no means by controlling the governor
D.by enlarging or diminishing the injection hole
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单项选择题
A.counterbalance the crank throws on the crankshaft
B.keep the engine running smoothly between power stroke
C.provide a belt-driving surface for the operation of auxiliary machinery
D.prevent the engine from overspeeding
单项选择题
A.the cross-head
B.the pumps
C.the shell
D.the load
单项选择题
A.gear
B.nonpositive displacement
C.positive displacement
D.rotary
单项选择题
A.the pump cylinder
B.the pump cam
C.the pump plunger
D.the pump miler
单项选择题
A.wheel
B.crankshaft
C.running gear
D.cam
单项选择题
A.charging
B.supercharging
C.starting
D.scavenging
单项选择题
A.behind
B.far from
C.adjacent to
D.in front of
单项选择题
A.power output
B.friction and wear
C.indicated pressure
D.rated horsepower
单项选择题
A.viscosity
B.density
C.velocity
D.electricity
单项选择题
A.higher
B.lower
C.low
D.high