单项选择题
A.suction stroke B.compression stroke C.power stroke D.exhaust stroke
The starting air entering the cylinder begins when the ...
单项选择题The starting air entering the cylinder begins when the piston（）
A.has nearly come to the TDC B.has just past the TDC C.has nearly come to the BDC D.has just past the BDC
In the starting system, the automatic valve is controll...
单项选择题In the starting system, the automatic valve is controlled by（）, and the cylinder start valves are controlled by（）
A.pilot air；pilot air B.handle；solenoid C.handle；pilot air coming through the distributor D.solenoid；pilot air coming through the distributor
A marine diesel engine is started by（）A.supplying high ...
单项选择题A marine diesel engine is started by（）
A.supplying high pressure oil into a hydraulic motor B.supplying high temperature air into the cylinder C.supplying high pressure air into the cylinder D.electrical igniting
