A、quantity of air it takes in and retains in the cylinders during a given time period
B、proportion of trapped air that is utilized in the combustion process
C、thermodynamic efficiency of the engine cycle
D、all of the above
更多“The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）”相关的问题
A、A.it has a longer power stroke B、B.more air gets into the cylinder each stroke C、C.it develops twice as many power strokes at the same speed D、D.higher combustion pressure is developed
A、SeaTalk B、powerful microprocessors and mega memory capacity C、chartplotter D、small-scale chart
A、A.more efficiently uses available engine power B、B.operates at a lower efficiency at a fixed speed C、C.produces the same torque at lower engine power D、D.develops its rated power at a lower speed
A、A.more efficiently uses available engine power B、B.operates at a lower efficiency at a fixed speed C、C.produces the same torque at lower engine power D、D.develops its rated power at a lower speed
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