Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.

 
  • 方法:采用水聽(tīng)器作為換能器,通過(guò)采集超聲信號在空間聲場(chǎng)內一點(diǎn)的聲壓波形。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan