单项选择题
A.machined B.bored C.honed D.drilled
With VIT unit the timing of fuel injection of an engine...
单项选择题With VIT unit the timing of fuel injection of an engine can be regulated automatically according to the （）.
A.ship draft B.pitch C.engine load D.oil viscosity
With VIT the start of injection may be （） as the engine...
单项选择题With VIT the start of injection may be （） as the engine load is reduced within a certain range.
A.advanced B.retarded C.relayed D.cut off
With Variable Injection Timing the start of injection m...
单项选择题With Variable Injection Timing the start of injection may be （）as the engine load is reduced.
A.advanced B.retarded C.kept constant D.none of the above
