Foot control Sewing speed can be varied by the foot control.
脚踏板通过脚踏板可改变缝纫速率。
This ensures a constant perfect stitch formation even at maximum sewing speed and minimum thread tension.
即使机器在最高速运转，线张力最小时，也能保证线迹的稳定和优美。
The automatic high-speed sewing machine controller is studied in this paper.
研究了一种由交流伺服电机驱动的全自动高速平缝机控制器。
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