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超声衰减系数的测量方法和测量装置

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  • Release time:2020-10-04

  • Patent Applicant:张书增, 张广栋, 戴昭杰, 李雄兵

  • Type of Patent:Invent

  • State of Patent:Authorized patents

  • Authorization number:CN 110726774 B

  • Service Invention or Not:no

  • Authorization Date:2020-09-15

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