...om豆丁网 构建块(Building Blocks)来组装微孔 有机聚合物显示了极大的优越性, 一般具有较高的 比表面积(Specific Surface Areas, SSAs), 且聚合物分 子链主要为密度较轻的元素C, N, O, B 等组成.
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The specific surface areas is an importance parameter in the performance measurement for the nanoparticles.
在纳米粒子的性能表征中，比表面积是一个非常重要的参数。
The results show that themodified cen ments have much smaller article sizes and higher specific surface areas;
试验结果表明，改性处理使以上耐火水泥的颗粒尺寸大大降低，比表面积增加；
Their specific surface areas and apparent and skeletal densities were determined according to conventional methods.
按照通常方法，测定了它们的比表面积、堆积密度、骨架密度。
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