单项选择题
A.Run it at minimum speed for a period of time B.Run it at half speed for a period of time C.Bring it to top speed immediately D.Inject ether into the air intake
How does combustion air enter the cylinder of a two-cyc...
单项选择题How does combustion air enter the cylinder of a two-cycle diesel engine?（）
A.Cylinder head valves B.Ports C.Turbo chargers D.Bleeder valves
Generally speaking，the fuel injected into a marine dies...
单项选择题Generally speaking，the fuel injected into a marine diesel engine combustion chamber is ignited by（）.
A.spark plugs B.glow plugs C.heat of compression D.a magneto
For most ship engines，the fuel is（）.A.natural gasB.dies...
单项选择题For most ship engines，the fuel is（）.
A.natural gas B.diesel oil C.propane D.bunker fuel
