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Coaxial electrohydrodynamic printing nozzle device has outer needle clamp that is connected with cantilever of upper and lower displacement table of inner needle to realize integral fixing of entire module of outer needle. 专利
申请日期: 2016-01-01, 公开日期: 2016-11-23
作者:  WANG D ZHAO X LIN Y ZHA W LIANG J R
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