1) scraper control valve
铲运机控制阀
2) scraper control valve detent
铲运机控制阀锁销
3) scraper control valve group
铲运机控制阀组件
4) scraper governor control valve
铲运机调速器控制阀
5) scraper hydraulic control valve
铲运机液压控制阀
6) scraper retarder control valve
铲运机减速器控制阀
参考词条