本发明采用硅与非硅复合方法制备空心金属微针，加工成本低。
The preparation method adopts the silicon and non-silicon compounding method for preparing the hollow metal micro-needle, and the processing cost is low.
本发明采用硅与非硅复合方法制备空心金属微针，加工成本低。
The preparation method adopts the silicon and non-silicon compounding method for preparing the hollow metal micro-needle, and the processing cost is low.
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