吊钩升hoist up吊钩降hoist down卷扬升/降winch uo/down回转左/右slewing left/right小车变幅进/出trolley in/out制动释放brake release紧急停止emc.stop

汽车起重机：底盘chassis柴油机diesel engine上车结构superstructure转向steering巴杆伸缩telescope对重counterweight润滑lubrication轴承bearing齿轮gear控制操作杆control lever力矩moment极限开关limit switch吊钩hook泵pump马达motor电磁铁electromagent阀valve油箱oil tank插销pin手柄handle按钮push button