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