泵压力油供油管路
pump oil pressure supply line
发动机机油供油道
engine oil supply passage
供油油膜
film of supplied oil layer
supplied oil layer
前置重油供油系统
topping heavy oil supply system
摇臂轴润滑油供油连接
rocker shaft oil supply connection
单流环式密封油系统
single-ring type sealing oil system
改进的润滑油温度调节器密封垫
improved oil temperature regulator gasket