1) bucket valve
铲斗阀
2) bucket/shovel valve
铲斗/铲刀阀
3) bucket tilt valve
铲斗转斗阀
4) bucket control valve
铲斗控制阀
5) bucket valve section
铲斗阀截面
6) bucket control valve spool
铲斗控制阀滑阀
参考词条