OBJECTIVE To prepare controlled - release delivery systems with drug gradients using three dimensional printing technique.

目的研究利用三维打印成形技术制备具有药物梯度特征的控释给药系统.

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Introduce the procedure to make ceramic photos through photographic technique and printing technique of ceramics.

介绍了通过摄影技术和陶瓷印花技术制备陶瓷影像的工艺过程.

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