- lap and lead lever
- lap-and-lead level
- 滑阀: guiding valve; slide valve
- 控制杆: Jacks; control column; contr ...
- 气阀控制杆: air valve control lever; ari valve control lever
- 盖与阀控制杆: cover and valve
- 空气阀控制杆: air valve control lever
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