单项选择题
A.fuel oil B.diesel oil C.compressed air D.jacket water
Diesel engines are started by supplying （） into the cyl...
单项选择题Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.
A.cooling water B.compressing air C.compressed air D.cylinder oil
Cylinders of marine diesel engines are normally cooled ...
单项选择题Cylinders of marine diesel engines are normally cooled by （）.
A.sea water B.fine mineral oil C.sanitary water D.fresh water
Cylinder liner cooling is often referred to as （）.A.pis...
单项选择题Cylinder liner cooling is often referred to as （）.
A.piston cooling B.sleeve cooling C.central cooling D.jacket cooling
