1) three-position selector spool
![点击朗读](/dictall/images/read.gif)
三位选择器滑阀
2) displacement selector spool
![点击朗读](/dictall/images/read.gif)
位移选择器滑阀
3) two-position selector spool
![点击朗读](/dictall/images/read.gif)
双位选择器滑阀
4) selector spool
![点击朗读](/dictall/images/read.gif)
选择器滑阀
5) selector valve spool
![点击朗读](/dictall/images/read.gif)
选择器阀滑阀
6) directional selector spool
![点击朗读](/dictall/images/read.gif)
转向选择器滑阀
参考词条