求翻译：随着地层压力的降低，岩石表面的吸附气开始解吸，并在基质中通过扩散作用进入裂缝系统，裂缝中的页岩气则以渗流方式进入井底，采至地面。是什么意思？

With the decrease in formation pressure, the rock began to surface adsorption of gas desorption and diffusion into the matrix through the fracture system, cracks in the shale gas flow to enter the bottom places, taken to the ground.

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Along with formation pressure depression, the rock surface adsorbed gas starts the desorption, and enters the crack system in the matrix through the diffusion, in the crack shale was mad enters the bottom of the well by the transfusion way, picks to the ground.

As pressure goes down, the rock surface of adsorption and desorption of gas began, and through diffusion into the crack in the matrix system, cracks in the shale gas to flow into the bottom, mining to ground.

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