1) front leg elevation control valve
前支腿提升控制阀
2) front leg elevation control
前支腿提升控制
3) ground level front leg elevation control valve
平地机前腿提升控制阀
4) front leg elevation
前支腿提升
5) front leg on/off control valve
前支腿开/关控制阀
6) front leg sensor control valve
前支腿传感器控制阀
参考词条