针杆 meaning in English

blade
needle bar
shank

Needle bars for household sewing machines
家用缝纫机.针杆
Turn the handwheel to move the needle bar up to its highest position
转动飞轮，把针杆上升到最高部位。
Alarm handsetting yoke spring
闹拨针杆簧
Various needle bar assembly
针杆汇总
Latchtype needles for knitting machines . coordination of shank widths and hook heights
针织机用舌针针杆厚度与针头高度的配置

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