单项选择题
A.inlet port B.exhaust port C.spill port D.scavenge port
As the plunger moves upwards in the barrel, injection w...
单项选择题As the plunger moves upwards in the barrel, injection will commence once the plunger has () the spill ports and the pressure builds up.
A.opened up B.closed off C.lined up D.taken off
It is important to note that the injection only takes p...
单项选择题It is important to note that the injection only takes place when the plunger is moving up the cam ().
A.base circle B.slope C.bottom point D.top point
The high-pressure fuel opens the fuel valve and is spra...
单项选择题The high-pressure fuel opens the fuel valve and is sprayed into the cylinder in tiny droplets known as ().
A.injection B.penetration C.atomization D.compression