单项选择题
A.top dead center B.temperature difference center C.time delay dock D.top diesel company
The abbreviation BDC means （）.A.Boston Diesel CompanyB....
单项选择题The abbreviation BDC means （）.
A.Boston Diesel Company B.base circle diameter C.switch board case D.bottom dead center
The （） in the injector will lift at a pre-set pressure ...
单项选择题The （） in the injector will lift at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.
A.needle valve B.nozzles C.piston D.spring
The （） or balance tank collects the re-circulated fuel ...
单项选择题The （） or balance tank collects the re-circulated fuel oil.
A.overflowing B.sump C.bilge D.buffer
