It also introduce the causing of shock wave in the water and the gas, and its spread in blasting hole, as well as its reflection and transmission and effects of rock.

就水和空气不偶合装药爆破冲击波的产生，及在炮孔内介质中的传播、反射和透射以及对周围岩石的作用过程都进行了详细的介绍。

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If everything goes well, your body will enter the water through the same hole that your hands did. This will make you feel as if you were shot out of a Canon.

如果所有的动作都很好，你的身体会沿着你的手所钻出的孔入水，这个感觉就像是自己是一发出膛的炮弹。

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The impervious wall of this project is located in water bearing sand and gravel, the collapse hole takes place due to some factor affect, the deep well lower water level measures are adopted.

本工程防渗墙在富含水砂卵砾石地层施工中，由于各种因素引起严重塌孔，施工中采用了深井井上降水措施。

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This goes for the fracking process itself, as well as the procedures for collecting and treating water polluted with fracking water that flows back up the hole.

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