众所周知，水力压裂和水平钻探技术其实已经诞生几十年。
As we all know, hydraulic fracturing and horizontal drilling technology has already been evened for decades.
这个废料坑位于一处水力压裂钻探场，它再次揭示了对废料坑的再次开采。
This image shows another waste pit at a hydro-fracing drill site. Again, we see a waste pit for drilling mud.
这个废料坑位于一处水力压裂钻探场，它再次揭示了对废料坑的再次开采。
This image shows another waste pit at a hydro-fracing drill site. Again, we see a waste pit for drilling mud.
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