图 7-1（Figure 7-1）
挑线量减少：Reduction of selection，挑线量增加：increase of selection 紧定螺钉：Set screw
2、松开紧定螺钉，左右移动针线操作器，如图 2 所示，把针线操作器边缘到
摆动挑线杆轴的中心调整至 80mm，然后拧紧紧定螺钉，针对不同布料时可通过调
节针线操作器边缘到摆动挑线杆轴的中心的距离来调节挑线量，针线操作器边缘到
摆动挑线杆轴的中心的距离加大，挑线量减小，针线操作器边缘到摆动挑线杆轴的
中心的距离减小，挑线量加大（图 8-2）。
Release set screw, moving around the needle thread operator，showed by figure 2，change
the distance between margin of needle thread operator and center of shuffing release pole
rod to 80mm, then tighten the set screw. For various type of fabric, we can adjust the
thread taking up length by change this distance. The distance between margin of needle
thread operator and center of shuffing release pole rod increases, the thread taking up
length decreases. Also, the distance decreases, the thread taking up length increases
( figure 8-2).
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