The former is reflection information which has gradually weakened with propagation time caused by attenuation by absorption;
前者引起反射波信息随传播时间逐步减弱；
The attenuation by absorption of seismic waves is closely relative to amplitude information and has higher sensibility if in comparison with other seismic information.
地震波的吸收衰减信息和振幅信息密切相关，与其他地震信息相比具有更高的灵敏度。
But whether it can reach the prospecting aim by study for inversion of attenuation by earth absorption and by decreasing high frequency noise?
但是否可以通过研究反演大地吸收衰减和减少采集的高频噪声达到勘探的目的呢？
Conclusion Liver tissues and structures varied by HL-1 quick intravenous infusion. The promotion in ultrasound attenuation and absorption indicated a shift of acoustic environment.
结论静脉快速输入HL - 1可使兔肝脏组织结构发生相应的变化，使肝脏声吸收衰减增加，因而改变了肝脏组织声学环境。
It is well known that attenuation by earth absorption depends on character of stratum and directly effects on imaging resolution in seismic prospecting.
众所周知，大地吸收衰减决定于地层的性质，并且大地吸收衰减直接影响地震勘探成像的分辨率。
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。
But under sea ice, the attenuation coefficient of PAR is little bit different, as the spectrum of the light has been changed by selective absorption through the sea ice.
在海冰覆盖的条件下，PAR的观测结果与无冰海水的PAR有明显差别。由于海冰选择性的吸收，穿透海冰进入海洋的PAR组分已经不同，海水对PAR的衰减系数也会相应变化。
But under sea ice, the attenuation coefficient of PAR is little bit different, as the spectrum of the light has been changed by selective absorption through the sea ice.
在海冰覆盖的条件下，PAR的观测结果与无冰海水的PAR有明显差别。由于海冰选择性的吸收，穿透海冰进入海洋的PAR组分已经不同，海水对PAR的衰减系数也会相应变化。
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