片语
main oil distributing passage主油道
plugged oil flow passage堵塞的油通道
oil supply passage供油通道
oil flow passage油流动通道
oil return passage油回流管道
oil duct油道;润滑油道;油导管
plugged oil supply passage堵塞的供油通道
fuel oil equivalent passage燃油管道
oil scavenging passage滑油回油路
engine oil supply passage发动机输油路