Conclusion: This method may be spreaded during the production of the powder-needle preparation.
结论：这一方法可以在粉针制剂生产过程中推行。
Objective: To depress the amount of which the powder-needle preparation appear eye winkers during the production.
目的：降低粉针制剂在生产中出现异物的数量。
The results showed that the image analysis method can obtain the average value and distribution curve of ratio of length to diameter for vilnite powder with needle shape.
研究表明图像分析方法可以直接给出硅灰石针状粉末的平均长径比及不同长径比的分布情况。
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