闭合油路回油道
loop circuit return passage
闭路液压系统
closed loop hydraulic system
铲刀升降液压油路
blade lift hydraulic circuit
低液压油油面指示器
low hydraulic oil level indicator
底盘液压油路附件
attachment carriage hydraulic circuit
反铲液压油路
backhoe hydraulic circuit
辅助液压油路
auxiliary hydraulic circuit
辅助转向液压油压力
supplemental steering oil pressure
机具液压油路
implement hydraulic circuit
平地铲液压油路
levelling blade hydraulic circuit