single thread chain stitch 单线链状线
thread-chain cutter 线环切断装置
two-thread chain stitch [服装] 双线锁缝线迹
thread-chain 线链
4-needle 8-thread chain stitch 四针八线链式线迹
single thread chain stitch zigzag 单线曲折链式线迹
chain thread 链锁纱线
All back rise seams should be two-thread chain stitch or double row lock stitch.
所有后档缝应当用双针链式缝迹或双行锁式线迹。
Model GK8-24 double-needle four-thread bag sewing closer adapted two paralleled double thread chain stitch with auto-cut system.
袋口热合封口机，可同时缝制两条平行的双线链式线迹，具有更佳的密封性。
Buttoning a sewing machine type buttoning a sewing machine can be divided into single thread chain line mark and double-thread lockstitch of two kinds.
钉纽扣缝纫机类型钉纽扣缝纫机可分为单线链式线迹和双线锁式线迹的两类。
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