needle tracking是什么意思

用法例句

In order to probe into the influences of sewing parameter on the seam pucker,feed dog height,foot pressure,sewing thread tension and stitch density are selected to analyze the effect on seam pucker by orthogonal experiments.

采用正交实验方法测试并分析了送布牙高度、压脚压力、缝纫线张力、针迹密度4项缝纫参数对缝口缩皱的影响。