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Results the nifedipine sustained-release beads was hydrophilic gel frame, drug diffusion and frame erosion was the release mechanisms in vitro.
结果本文自制硝苯地平缓释微丸为亲水性凝胶骨架制剂，体外释放机制包括药物扩散和骨架溶蚀两种作用。
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