Results pancreatic and salivary amylases with high specific activity and high purity were obtained. The apparent molecular weights of pancreatic and salivary amylases were 55kd and 57kd, respectively.
结果获得了高比活性及高纯度的人胰型及唾液型淀粉酶，胰型及唾液型淀粉酶的表现分子量分别为55kd和57kd。
The properties, such as apparent density, specific surface, particle size distribution and activity of mechanical activated fly ash at different grinding time were studied.
研究了机械活化时间对粉煤灰的视密度、比表面积、粒度分布及活性的影响。
The properties, such as apparent density, specific surface, particle size distribution and activity of mechanical activated fly ash at different grinding time were studied.
研究了机械活化时间对粉煤灰的视密度、比表面积、粒度分布及活性的影响。
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