... noise-pollution (level) meter 噪声公害测定仪 digital di lay level adjusting meter 数字显示水平调整仪 sound level meter 声级计 ; 噪声计 ; 声位仪 ; 噪音计 ...
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水声定位仪 hydrolocator ; acoustic position indicator
声波定位仪 ALD ; sonar ; soundlocater
鱼噪声定位仪 [水产] fish noise direction finder
声纳定位仪 sound fixing and ranging ; SOFAR
声定位仪 sonic locator ; soundlocater
声波定位仪器 Sound locating instruments ; acoustic positioning instruments
回声定位仪 echo locator
拖曳声波定位仪 Towed Pinger Locator
声学定位仪 acoustic locating device
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