在井中为封堵井的下部所用的水泥塞。
A cement bridge used in a well to seal the lower portion of the well.
封堵油井一周后，热带风暴邦尼来袭，迫使减压井的海上作业暂时停止，而减压井将有益于封堵漏油。
The cap halted the oil flow a week before Tropical Storm Bonnie blew through and forced a temporary halt to drilling of a relief well that will seal the leak for good.
该公司为了彻底封堵漏油正在钻两个减压井，第一口井预计至少到8月中才能完工。
The company is drilling two relief Wells to permanently plug the leak. The first is not expected to be finished until at least the middle of next month.
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