1) steer cylinder auxiliary relief valve
转向油缸辅助安全阀
2) supplemental steering relief valve
辅助转向安全阀
3) steering cylinder relief valve
转向油缸安全阀
4) swing cylinder relief valve
转盘油缸安全阀
5) secondary relief valve
辅助安全阀
6) cylinder relief valve
油缸安全阀
参考词条