名詞 kraft:

1. strong wrapping paper made from pulp processed with a sulfur solution
   同義詞：kraft paper

kraft

n.（名詞）
A tough, usually brown paper made from wood pulp treated with a solution of sodium sulfate, used chiefly for bags and wrapping paper.
牛皮紙：一種由經(jīng)過硫酸鈉溶液處理過的木漿制成的硬紙，通常為棕色，主要用來作袋子或包裝紙

來源：
Short for Swedish kraftpapper
瑞典語 kraftpapper的簡寫
kraft from Old Swedish krapt
kraft 源自 古瑞典語 krapt
papper [paper]
papper [紙]