Stitch length is easy to adjust.
可调节式粗细针。
Stitch length can be adjusted easily by turning the length dial.
使用调节钮可轻松调整缝距。
Certified the correct of the geometry model and stitch length formula.
验证了几何模型和送经量公式的正确性。
Certified the correct of the geometry model and stitch length formula.
验证了几何模型和送经量公式的正确性。
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