接收到的回波幅度与理论声压值基本一致，表明实验结果可信。
The received echo wave's amplitude is keeping with the theoretical sound pressure value. So the result of experiment is credibly.
接收到的回波幅度与理论声压值基本一致，表明实验结果可信。
The received echo wave's amplitude is keeping with the theoretical sound pressure value. So the result of experiment is credibly.
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