泵供油管接头总成
pump supply line adapter assembly
泵压力油供油管路
pump oil pressure supply line
冲击式锻锤供油管路
impact hammer supply oil line
冲击式锻锤供油管路连接
impact hammer supply oil line connection
地面驱动供油滤清器
ground drive supply filter
反向驱动供油管路
reverse drive supply line
高压供油管路
fuel oil injection piping
各缸供油量不均匀
fuel variation among cylinders