Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.
方法：采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。
Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.
方法：采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。
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