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。
2
Although initially we had trouble seeing through the dense dust and ash clouds, through thermal imaging we can see that the face of Earth has been forever changed.
虽然最初我们遇到了麻烦在浓密的尘埃和灰云看到，通过热成像，我们可以看到，地球上已经永远地改变。
3
Based on the concept of aperture synthesis sparse antenna, the imaging radar on the stratosphere airship for the earth observation is investigated.