"A heat exchanger for cooling engine oil by fuel flow or airflow." what is the component?
A.oil heater
B.oil pump
C.oil scavenge valve
D.oil cooler
正确答案是D
"A heat exchanger for cooling engine oil by fuel flow or airflow." what is the component?
A.oil heater
B.oil pump
C.oil scavenge valve
D.oil cooler
正确答案是D