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校验超声水浸压电探头的方法及装置

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  • Release time:2020-04-28

  • Patent Applicant:张书增, 李雄兵, 吕铎, 宋永锋

  • Type of Patent:Invent

  • State of Patent:Authorized patents

  • Authorization number:CN 109270172 B

  • Service Invention or Not:no

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