1·The modern spectrum analytical technologies were applied to study the lignin structure of poplar wood and its APMP pulps.
通过现代光谱分析技术，对黑杨杨木及其APMP纸浆的木质素结构进行了研究。
2·Specialty pulps also may be used in combination with woodpulp to produce lightweight and ultra-lightweight printing and writing papers.
特种纸浆也可以结合木浆使用，来生产轻型和超轻的印刷书写纸。
3·Meanwhile, the effects of cationic cellulose as wet end chemicals on the strengthening and the sizing of different recycled pulps were discussed in detail.
初步研究阳离子纤维素的结构特征，并探讨阳离子纤维素对两种废纸浆的增强效果。
4·The strength properties of the unbeated pulps increased during the first few recycles and then dropped off gradually, whereas those of beaten pulps decreased even in the first recycle.
结果表明，未打浆化学浆循环回用时，其主要强度性质的变化规律与打过浆的纸浆完全不同；
5·Pulps obtained by grinding fibrous woods with mechanical means.
美国名词。用机械方法将木材纤维原料磨解成纸浆。