单项选择题
Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.
A.exhaust gas temperature system B.exhaust load system C.constant or pulse pressure system D.constant volume system
单项选择题 Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.
单项选择题 The PRIMARY function of a waste heat boiler is to （）.
单项选择题 The PRIMARY function of a waste heat boiler is to （）
