问题: 请教"butt rolls" 是何意？“Prohibitive materials may not exceed: None permitted”是何意？
全文为：“Waste paper-we need 13#NCC, consists of baled new corrugated cuttings having liners of either test liner, jute or kraft. Insoluble adhesives, butt rolls, slabbed or hogged medium, and treated medium or liners are not acceptable in this grade. Prohibitive materials may not exceed: None permitted, total outthrows may not exceed:2%."
敬请全文指教，我实在晕了。
多谢。
解答:
参照一下这个吧
http://paper.blogdriver.com/paper/338751.html
版权及免责声明
1、欢迎转载本网原创文章，转载敬请注明出处：侨谊留学（www.goesnet.org）；
2、本网转载媒体稿件旨在传播更多有益信息，并不代表同意该观点，本网不承担稿件侵权行为的连带责任；
3、在本网博客/论坛发表言论者，文责自负。
