1) lift pilot valve lever
提升器先导阀操纵杆
2) lift pilot valve stem
提升器先导阀杆
3) pilot valve control lever
先导阀操纵杆
4) stick pilot control valve
斗杆先导操纵阀
5) lift control lever
提升器操纵杆
6) lift pilot valve
提升器先导阀
参考词条