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1.Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas 失效
标题翻译: 具有非常低的频率和声学天线的机械放大的压电传感器-
公开(公告)号:EP0006814A3
公开(公告)日:1980-01-23
申请号:EP79400434
申请日:1979-06-28
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公开(公告)号:EP0006814A3
公开(公告)日:1980-01-23
申请号:EP79400434
申请日:1979-06-28