1) scraper retarder control valve
铲运机减速器控制阀
2) scraper retarder valve
铲运机减速器阀
3) scraper governor control valve
铲运机调速器控制阀
4) scraper retarder control group
铲运机减速器控制组件
5) scraper retarder
铲运机减速器
6) scraper control valve
铲运机控制阀
参考词条