1) scraper selection spool
铲运机选择滑阀
2) scraper transmission selector spool
铲运机传动系选择器滑阀
3) selection spool
选择滑阀
4) scraper valve
铲运机阀
5) scraper transmission spool
铲运机传动系滑阀
6) scraper transmission selection
铲运机传动系的选择
参考词条