Similar to the Seattle project, this one required new drilling techniques, including the use of probe holes to assess ground conditions ahead of the huge tunnel-boring machines (TBM).

与西雅图的工程相似的是，这里的项目也需要新的钻探技术，包括在上马巨型隧道掘进机(TBM)前使用探孔来评估土质条件。

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The stable relationship between the degree of compaction and thermal maturity has important practical significance in the prediciton of organic maturity of a sedimentary basin ahead of drilling.

压实程度与热成熟度之间的稳定关系对沉积盆地热演化程度早期评价具有重要应用意义。

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Yet Congress has enacted no meaningful steps to remove the ban against most offshore drilling, despite the almost certain prospect in years ahead that the OCS would substantially boost U.S. domestic oil and natural gas output.

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Earlier Wednesday, well control expert Calvin Barnhill testified that he believes Deepwater Horizon rig workers "got ahead of themselves" as they tried to seal the Macondo well and prepared to move on to drilling a different well.

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Whether or not the administration puts a temporary stop to deep-water drilling, we can only imagine what effect the added cost of higher premiums for drilling rig insurance and more sophisticated safety equipment is going to be in the months and years ahead.

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