短语词组短語tension screw stud 夾線螺釘stud screw 柱螺栓螺釘;螺柱螺釘balance spring stud screw 遊絲外栓螺釘hairspring stud screw 遊絲外樁螺釘balance ring stud screw 遊絲外栓螺釘balance e spring stud screw 遊絲外栓螺釘 返回 screw stud