一次干燥

利用动态实测数据拟合得到了一次干燥过程中干燥区内的水蒸汽扩散系数，并进行了误差分析。

Water vapor diffusion coefficient in the dried part was fitted using the experimental data . Error analysis was also conducted .

本文研究了药品冻干中甘露醇浓度、降温速率、退火和加热方式等参数对其一次干燥速率的影响。

The effects of mannitol concentration , cooling rate , annealing and heating method on primary drying rate were investigated in this paper .

在同样厚度下，一次干燥-10℃，二次干燥20℃，抗坏血酸保持得最好。

Under the same thickness , when the first drying temperature was-10 ℃, the second drying temperature was 20 ℃, AA could be kept best .

改进后的干燥机，热空气流动均匀，废气热能合理回收利用，能一次完成干燥。

The air velocity of the improved drier is homogeneous and the waste gas and heat energy can be recycled reasonably , and the drying can be completed once .