To deepen a wellbore with the drill bit. To drill ahead.
用钻头加深井眼，往深处钻进。
On Thursday (July 8) BP said its operation to drill a new relief well to stop the Deepwater Horizon leak was ahead of schedule.
周四(7月8日)，英国石油公司表示，他们为了停止“深水地平线”继续漏油而打钻的一口新的减压油井将提前完成。
The strict management system of company and the drill mechanism ahead of time certainly ensure to provide high-quality products, more perfect management system and service to each cooperator.
公司严格的管理体系与超前的训练机制，确保为每位合作者提供更优质的产品，更完善的管理体系与服务。
The strict management system of company and the drill mechanism ahead of time certainly ensure to provide high-quality products, more perfect management system and service to each cooperator.
公司严格的管理体系与超前的训练机制，确保为每位合作者提供更优质的产品，更完善的管理体系与服务。
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