bag closure, sack closure

[作业 运输] 袋子拉链锁合,粗布袋拉链锁合; 封包、封袋; 袋子缝合处,麻布袋缝合处; 袋扎口,麻布袋扎口; 袋闭合、袋闭合; 袋闭合; 包裹隔板,隔离带