kraftn.牛皮纸Kraft.克拉夫特（人名）.kraft bleach waste water牛皮纸漂白废水kraft fourdrinier machine长网牛皮纸机kraft bag-making machine制牛皮纸袋机Kraft went to the track.卡夫特去了赛马场。Kraft's tree classification几何问题kraft paper for light packing轻包装用牛皮纸Kraft Pulping of Acacia Mangium金合欢硫酸盐法制浆研究及生产实践kraft pulp of hemp's woody-core几何分割

1. Oxygen delignification of populus kraft pu1p is studied.
   进行了杨木硫酸盐浆氧脱木素的研究。
2. In this paper, less chlorine bleaching of mixed hardwoods kraft pulp was investigated.
   对硬杂木硫酸盐浆的少氯漂白进行了研究。