单项选择题
A.indicated horsepower
B.mean effective pressure
C.exhaust back pressure
D.compression pressure
单项选择题 If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two-stroke/cycle diesel engine will develop approximately（）
单项选择题 In comparing engines of equal horsepower, higher exhaust gas temperatures occur in a/an（）
单项选择题 A disadvantage of a two-stroke/cycle diesel engine is（）