Property of cuprammonium rayon was introduced.Three passages drawing was done,and this processing plan was adopted when spinning cuprammonium rayon cotton blended knitting yarn.
介绍了铜氨的特性,铜氨和纺制针织用纱的工艺方案是采用三道并条的工艺。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。