1) rotary selector spool
旋转式选择器滑阀
2) rotary selector spool stop
旋转式选择器滑阀挡块
3) rotary selector valve
旋转式选择器阀
4) transmission rotary selector spool
变速箱旋转选择器滑阀
5) directional selector spool
转向选择器滑阀
6) tractor transmission rotary selector spool
拖拉机变速箱旋转选择器滑阀
参考词条