1) steering selector valve
![点击朗读](/dictall/images/read.gif)
转向选择器阀
2) directional selector spool
![点击朗读](/dictall/images/read.gif)
转向选择器滑阀
3) directional selector
![点击朗读](/dictall/images/read.gif)
转向选择器
4) reverse selector spool
![点击朗读](/dictall/images/read.gif)
反向选择器滑阀
5) direction selector spool
![点击朗读](/dictall/images/read.gif)
方向选择器滑阀
6) direction selector valve
![点击朗读](/dictall/images/read.gif)
方向选择器阀
参考词条