实验表明额隆内有若干点声衰减为负值及零值、意味着声波沿这些点传输时、声压非但不减小反而增大了。

The experiment showed that in the melon slices there were some points where the sound pressure attenuation coefficient were negative value or zero.

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实验表明额隆内有若干点声衰减为负值及零值、意味着声波沿这些点传输时、声压非但不减小反而增大了。

The experiment showed that in the melon slices there were some points where the sound pressure attenuation coefficient were negative value or zero.

youdao