倾斜先导阀杆 tilt pilot valve lever ; tilt pilot valve stem

增扭先导阀杆 torque rise pilot valve lever

先导阀杆 pilot valve stem

提升器先导阀杆 lift pilot valve stem

阀导杆 valve tail rod ; valve-stem guide ; ale tail rod ; [机] valve stem guidance

阀杆导向 stem guiding ; stcmguiding

阀门杆导路 guide for the valve rod

阀杆导路 valve rod guide

阀挺杆导承 valve lifter guide ; valve tappet guide