| 21. | The subsurface was found to be completely sterile and excavation was stopped.
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| 22. | This conceals the subsurface depot for London Underground's Bakerloo line.
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| 23. | They have an ochric or umbric horizon and a cambic subsurface horizon.
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| 24. | These utilities include Subsurface Utility Engineering "'( SUE ).
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| 25. | There are at least three types of hydraulic subsurface pump:
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| 26. | The brine fluid infiltrated the subsurface and was black smokers.
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| 27. | It can be found in the subsurface of most of the Netherlands.
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| 28. | This soft material may be warm ice or even a subsurface ocean.
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| 29. | It was assumed that subsurface highs correlated to surface highs.
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| 30. | In the subsurface, Triassic salt diapirs are also present.
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