diffraction-type k attenuation 绕射型k型衰落
The attenuation amount of diffraction of this sound barrie is calculated according to the acoustics principle, the feasible remedies are put forward.
并根据声学原理计算了该声屏障绕射衰减量，提出了切实可行的补救措施。
The sphere affects the incident by the refraction, diffraction, reflection, absorption and attenuation of impurity.
这种球体对入射光存在折射、衍射、反射、吸收和杂质对入射光波的衰减作用等影响。
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