When using the instantaneous intensity ratio method, the event of first arrival curve becomes more smooth, and abnormal points have greatly reduced, thus the accuracy of picking is greatly enhanced.
而采用瞬时强度比法后，初至曲线的同向轴变得更加光滑，拾取异常点的情况大为减少，从而有效的提高拾取的精度。
The roller presser design is suitable to sew the abnormal material, such as various leather, sponge-within leather and light materials which can keep the seam smooth and even, without crease.
轮钱式押脚设计，在车缝时能自由转向，适用于不规则形之缝料，且适用与各类皮料、海绵、薄料之车缝。
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