The buttonholes programmed by the operator are sewn sequentially ; the respective cutting length is allocated fully automatically . this means maximum efficiency , even for short runs 因此,在完成一種鎖眼后無需做其他的調(diào)節(jié),機器根據(jù)操作人員編制好的程序序列,自動地改變切孔長度進行鎖眼,極大程度地提高了生產(chǎn)效率。