中国造纸杂志社-造纸；纸浆；制浆；行业；专家；设备 关键词：复合填料；CaCO3；纸张物理性能 [gap=795]Key words：composite fillers; calcium carbonate; paper physical properties
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physical properties of paper 纸张的物理性能
Firstly, the physical and mechanical properties of Shapotou soft rock are detailedly analysed in this paper.
首先，本文对沙坡头坝基软岩的物理力学特性进行了详细的分析。
The first work of this paper is measuring physical properties of chitosan. Degree of deacetylation(DD)of chitosan determined by acid base titration is about 83%.
实验首先对原料壳聚糖的物理性质进行测定：采用酸碱指示剂滴定法测定壳聚糖的脱乙酰度约为83%，应用粘度法测定其粘均分子量为十万左右。
The first work of this paper is measuring physical properties of chitosan.
本文首先对壳聚糖的物理性质进行测定。
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