1) l-mode power selector valve
l-形功率选择器阀
2) power selector valve
功率选择器阀
3) power selector valve relief check
功率选择器阀卸荷检验
4) power selector
功率选择器
5) l-power mode control valve
l-形功率控制阀
6) drum selector valve
卷筒(形)选择器阀
参考词条