Diffraction - not only will a wave of sound reflect or absorb but it can go over the obstacle.

衍射-声音虽然会被反射已经吸收，但是他能绕过阻挡物。

youdao

Diffraction - not only will a wave of sound reflect or absorb but it can go over the obstacle.

衍射-声音虽然会被反射已经吸收，但是他能绕过阻挡物。

youdao