发动机机油润滑系统压力不足
insufficient engine oil lubricating system pressure
低液压油油面指示器
low hydraulic oil level indicator
辅助转向液压油压力
supplemental steering oil pressure
局部的润滑油不足
insufficient differential oil
液压油压降
hydraulic fluid pressure drop
液压油压力平衡
hydraulic oil pressure balance
液压油压力系统
hydraulic oil pressure system
液压油油面警报指示器
hydraulic oil level warning indicator
液压油油面开关
hydraulic oil level switch
液压油油面问题
hydraulic oil level problem