铲运机减速器控制阀
scraper retarder control valve
减速器控制阀的操纵
retarder control valve control
减速器控制阀检查
retarder control valve check
减速器控制阀体
retarder control valve body
拖拉机减速器控制阀
tractor retarder control valve
转向离合器控制器滑阀
directional clutch selector spool
铲运机减速器控制组件
scraper retarder control group
调速器及减速器控制组件
governor and decelerator control group
发动机减速器控制模块
engine retarder control module
减速器控制装置
retarder control arrangement