紫外光催化接枝的微绒毛制备简便、铆接牢固，可用于医疗器械或生物埋置材料的表面修饰。
The microbrushes prepared by photocatalysis method could bind firmly on PLLA casting film, which is possible to be used in surface modification of medical devices and implanting materials.
拉母：指采用类似铆接的工艺。用拉母枪把拉铆螺母（POP）等连接件牢固地连接在工件上的工艺过程。
La Mother: refers to the process similar to riveting. Mother with a pull shot to pull rivet nut (POP) and other connectors firmly connected to the workpiece on the process.
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