单项选择题
The process of supplying a diesel engine cylinder with air at a pressure greater than atmospheric is called（）.
A.engine displacement B.super-aspirating C.air injection D.supercharging
单项选择题 In a diesel engine, blow-by（）
单项选择题 A diesel engine will lose power if fuel injection occurs too late in the cycle, because the（）
单项选择题 Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）
