Mechanical design of stabilized platform unit is one of the key techniques in the rotary steering drilling tool.

稳定平台单元机械系统的设计是旋转导向钻井工具的关键和难点之一。

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Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.

本单元组监督元监督和协调从事钻探石油或天然气，运营服务的钻机，或提供石油和天然气井技术服务的工人的活动。

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And the operators are improved by establishing the Order Exchange Unit and Order Exchange List to satisfy the need of integer coding in drilling path optimization.

通过建立序交换元和序交换集对算法的操作算子进行改进，满足钻削路径优化问题中整数编码的需要。

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Brooklyn, New York (Motherboard.tv) -- In April of last year the Deepwater Horizon semi-submersible Mobile Offshore Drilling Unit exploded in the Gulf of Mexico, killing 11 men, injuring 17 others and triggering what is generally recognized as one of the greatest human errors ever made and officially the largest unforeseen marine oil catastrophe since people started drilling for oil.

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